Finding the Fourth Proportional to 624,878.49, 862,331.09 and 338,397.69
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Solution
The fourth proportional to 624,878.49, 862,331.09 and 338,397.69 is: 466,988.15
Step by Step Solution
- Step 1: Write the proportion equation
624,878.49 : 862,331.09 = 338,397.69 : x - Step 2: Convert to fraction form
624,878.49/862,331.09 = 338,397.69/x - Step 3: Cross multiply
624,878.49x = 862,331.09 × 338,397.69 - Step 4: Simplify right side
624,878.49x = 291,810,847,179.19 - Step 5: Solve for x
x = 291,810,847,179.19/624,878.49 - Step 6: Final answer
x = 466,988.15
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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.