Finding the Fourth Proportional to 747,812.17, 1,031,975.50 and 408,280.42
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Solution
The fourth proportional to 747,812.17, 1,031,975.50 and 408,280.42 is: 563,424.09
Step by Step Solution
- Step 1: Write the proportion equation
747,812.17 : 1,031,975.50 = 408,280.42 : x - Step 2: Convert to fraction form
747,812.17/1,031,975.50 = 408,280.42/x - Step 3: Cross multiply
747,812.17x = 1,031,975.50 × 408,280.42 - Step 4: Simplify right side
747,812.17x = 421,335,390,569.71 - Step 5: Solve for x
x = 421,335,390,569.71/747,812.17 - Step 6: Final answer
x = 563,424.09
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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.