Finding the Fourth Proportional to 560,029.57, 772,839.37 and 305,380.75
Calculator
Solution
The fourth proportional to 560,029.57, 772,839.37 and 305,380.75 is: 421,424.65
Step by Step Solution
- Step 1: Write the proportion equation
560,029.57 : 772,839.37 = 305,380.75 : x - Step 2: Convert to fraction form
560,029.57/772,839.37 = 305,380.75/x - Step 3: Cross multiply
560,029.57x = 772,839.37 × 305,380.75 - Step 4: Simplify right side
560,029.57x = 236,010,266,440.13 - Step 5: Solve for x
x = 236,010,266,440.13/560,029.57 - Step 6: Final answer
x = 421,424.65
Related Problems
Find fourth proportional to 280,014.79, 386,419.69 and 152,690.38
Half scale
Find fourth proportional to 1,120,059.14, 1,545,678.74 and 610,761.50
Double scale
Find fourth proportional to 560,030.57, 772,840.75 and 305,381.75
Similar ratio
Find fourth proportional to 840,044.36, 1,159,259.06 and 458,071.13
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.