Finding the Fourth Proportional to 748,635.40, 1,122,953.10 and 411,545.80
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Solution
The fourth proportional to 748,635.40, 1,122,953.10 and 411,545.80 is: 617,318.70
Step by Step Solution
- Step 1: Write the proportion equation
748,635.40 : 1,122,953.10 = 411,545.80 : x - Step 2: Convert to fraction form
748,635.40/1,122,953.10 = 411,545.80/x - Step 3: Cross multiply
748,635.40x = 1,122,953.10 × 411,545.80 - Step 4: Simplify right side
748,635.40x = 462,146,631,901.98 - Step 5: Solve for x
x = 462,146,631,901.98/748,635.40 - Step 6: Final answer
x = 617,318.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.