Finding the Fourth Proportional to 2,658,864.70, 3,987,460.38 and 861,331.06
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Solution
The fourth proportional to 2,658,864.70, 3,987,460.38 and 861,331.06 is: 1,291,725.55
Step by Step Solution
- Step 1: Write the proportion equation
2,658,864.70 : 3,987,460.38 = 861,331.06 : x - Step 2: Convert to fraction form
2,658,864.70/3,987,460.38 = 861,331.06/x - Step 3: Cross multiply
2,658,864.70x = 3,987,460.38 × 861,331.06 - Step 4: Simplify right side
2,658,864.70x = 3,434,523,475,813.40 - Step 5: Solve for x
x = 3,434,523,475,813.40/2,658,864.70 - Step 6: Final answer
x = 1,291,725.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.