Finding the Fourth Proportional to 730,395.62, 1,007,926.98 and 408,107.96
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Solution
The fourth proportional to 730,395.62, 1,007,926.98 and 408,107.96 is: 563,178.38
Step by Step Solution
- Step 1: Write the proportion equation
730,395.62 : 1,007,926.98 = 408,107.96 : x - Step 2: Convert to fraction form
730,395.62/1,007,926.98 = 408,107.96/x - Step 3: Cross multiply
730,395.62x = 1,007,926.98 × 408,107.96 - Step 4: Simplify right side
730,395.62x = 411,343,023,636.76 - Step 5: Solve for x
x = 411,343,023,636.76/730,395.62 - Step 6: Final answer
x = 563,178.38
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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.