Finding the Fourth Proportional to 329,079.13, 493,618.71 and 79,761.13
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Solution
The fourth proportional to 329,079.13, 493,618.71 and 79,761.13 is: 119,641.70
Step by Step Solution
- Step 1: Write the proportion equation
329,079.13 : 493,618.71 = 79,761.13 : x - Step 2: Convert to fraction form
329,079.13/493,618.71 = 79,761.13/x - Step 3: Cross multiply
329,079.13x = 493,618.71 × 79,761.13 - Step 4: Simplify right side
329,079.13x = 39,371,586,098.74 - Step 5: Solve for x
x = 39,371,586,098.74/329,079.13 - Step 6: Final answer
x = 119,641.70
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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.