Finding the Fourth Proportional to 762,708.21, 1,052,534.37 and 418,549.88
Calculator
Solution
The fourth proportional to 762,708.21, 1,052,534.37 and 418,549.88 is: 577,597.20
Step by Step Solution
- Step 1: Write the proportion equation
762,708.21 : 1,052,534.37 = 418,549.88 : x - Step 2: Convert to fraction form
762,708.21/1,052,534.37 = 418,549.88/x - Step 3: Cross multiply
762,708.21x = 1,052,534.37 × 418,549.88 - Step 4: Simplify right side
762,708.21x = 440,538,126,903.95 - Step 5: Solve for x
x = 440,538,126,903.95/762,708.21 - Step 6: Final answer
x = 577,597.20
Related Problems
Find fourth proportional to 381,354.11, 526,267.18 and 209,274.94
Half scale
Find fourth proportional to 1,525,416.42, 2,105,068.73 and 837,099.75
Double scale
Find fourth proportional to 762,709.21, 1,052,535.74 and 418,550.88
Similar ratio
Find fourth proportional to 1,144,062.32, 1,578,801.55 and 627,824.81
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.