Finding the Fourth Proportional to 543,949.28, 747,988.08 and 472,203.80
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Solution
The fourth proportional to 543,949.28, 747,988.08 and 472,203.80 is: 649,330.42
Step by Step Solution
- Step 1: Write the proportion equation
543,949.28 : 747,988.08 = 472,203.80 : x - Step 2: Convert to fraction form
543,949.28/747,988.08 = 472,203.80/x - Step 3: Cross multiply
543,949.28x = 747,988.08 × 472,203.80 - Step 4: Simplify right side
543,949.28x = 353,202,813,730.70 - Step 5: Solve for x
x = 353,202,813,730.70/543,949.28 - Step 6: Final answer
x = 649,330.42
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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.