Finding the Fourth Proportional to 724,753.41, 1,087,437.24 and 387,705.75
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Solution
The fourth proportional to 724,753.41, 1,087,437.24 and 387,705.75 is: 581,722.92
Step by Step Solution
- Step 1: Write the proportion equation
724,753.41 : 1,087,437.24 = 387,705.75 : x - Step 2: Convert to fraction form
724,753.41/1,087,437.24 = 387,705.75/x - Step 3: Cross multiply
724,753.41x = 1,087,437.24 × 387,705.75 - Step 4: Simplify right side
724,753.41x = 421,605,670,712.13 - Step 5: Solve for x
x = 421,605,670,712.13/724,753.41 - Step 6: Final answer
x = 581,722.92
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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.