Finding the Fourth Proportional to 769,893.12, 1,062,645.12 and 616,331.52
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Solution
The fourth proportional to 769,893.12, 1,062,645.12 and 616,331.52 is: 850,691.69
Step by Step Solution
- Step 1: Write the proportion equation
769,893.12 : 1,062,645.12 = 616,331.52 : x - Step 2: Convert to fraction form
769,893.12/1,062,645.12 = 616,331.52/x - Step 3: Cross multiply
769,893.12x = 1,062,645.12 × 616,331.52 - Step 4: Simplify right side
769,893.12x = 654,941,682,030.18 - Step 5: Solve for x
x = 654,941,682,030.18/769,893.12 - Step 6: Final answer
x = 850,691.69
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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.