Finding the Fourth Proportional to 558,899,401.68, 771,258,718.91 and 304,575,357.75
Calculator
Solution
The fourth proportional to 558,899,401.68, 771,258,718.91 and 304,575,357.75 is: 420,301,756.50
Step by Step Solution
- Step 1: Write the proportion equation
558,899,401.68 : 771,258,718.91 = 304,575,357.75 : x - Step 2: Convert to fraction form
558,899,401.68/771,258,718.91 = 304,575,357.75/x - Step 3: Cross multiply
558,899,401.68x = 771,258,718.91 × 304,575,357.75 - Step 4: Simplify right side
558,899,401.68x = 234,906,400,230,581,376 - Step 5: Solve for x
x = 234,906,400,230,581,376/558,899,401.68 - Step 6: Final answer
x = 420,301,756.50
Related Problems
Find fourth proportional to 279,449,700.84, 385,629,359.46 and 152,287,678.88
Half scale
Find fourth proportional to 1,117,798,803.36, 1,542,517,437.83 and 609,150,715.50
Double scale
Find fourth proportional to 558,899,402.68, 771,258,720.29 and 304,575,358.75
Similar ratio
Find fourth proportional to 838,349,102.52, 1,156,888,078.37 and 456,863,036.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.