Finding the Fourth Proportional to 1,172,641.55, 1,618,251.33 and 663,332.99
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Solution
The fourth proportional to 1,172,641.55, 1,618,251.33 and 663,332.99 is: 915,402.92
Step by Step Solution
- Step 1: Write the proportion equation
1,172,641.55 : 1,618,251.33 = 663,332.99 : x - Step 2: Convert to fraction form
1,172,641.55/1,618,251.33 = 663,332.99/x - Step 3: Cross multiply
1,172,641.55x = 1,618,251.33 × 663,332.99 - Step 4: Simplify right side
1,172,641.55x = 1,073,439,493,300.38 - Step 5: Solve for x
x = 1,073,439,493,300.38/1,172,641.55 - Step 6: Final answer
x = 915,402.92
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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.