Finding the Fourth Proportional to 1,126,499.92, 1,689,720.68 and 378,545.92
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Solution
The fourth proportional to 1,126,499.92, 1,689,720.68 and 378,545.92 is: 567,809.07
Step by Step Solution
- Step 1: Write the proportion equation
1,126,499.92 : 1,689,720.68 = 378,545.92 : x - Step 2: Convert to fraction form
1,126,499.92/1,689,720.68 = 378,545.92/x - Step 3: Cross multiply
1,126,499.92x = 1,689,720.68 × 378,545.92 - Step 4: Simplify right side
1,126,499.92x = 639,636,869,353.63 - Step 5: Solve for x
x = 639,636,869,353.63/1,126,499.92 - Step 6: Final answer
x = 567,809.07
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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.