Finding the Fourth Proportional to 1,125,937.38, 1,553,407.74 and 642,154.62
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Solution
The fourth proportional to 1,125,937.38, 1,553,407.74 and 642,154.62 is: 885,953.32
Step by Step Solution
- Step 1: Write the proportion equation
1,125,937.38 : 1,553,407.74 = 642,154.62 : x - Step 2: Convert to fraction form
1,125,937.38/1,553,407.74 = 642,154.62/x - Step 3: Cross multiply
1,125,937.38x = 1,553,407.74 × 642,154.62 - Step 4: Simplify right side
1,125,937.38x = 997,527,956,984.76 - Step 5: Solve for x
x = 997,527,956,984.76/1,125,937.38 - Step 6: Final answer
x = 885,953.32
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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.