Finding the Fourth Proportional to 624,612.62, 861,968.18 and 338,132.70
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Solution
The fourth proportional to 624,612.62, 861,968.18 and 338,132.70 is: 466,624.62
Step by Step Solution
- Step 1: Write the proportion equation
624,612.62 : 861,968.18 = 338,132.70 : x - Step 2: Convert to fraction form
624,612.62/861,968.18 = 338,132.70/x - Step 3: Cross multiply
624,612.62x = 861,968.18 × 338,132.70 - Step 4: Simplify right side
624,612.62x = 291,459,628,862.82 - Step 5: Solve for x
x = 291,459,628,862.82/624,612.62 - Step 6: Final answer
x = 466,624.62
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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.