Finding the Fourth Proportional to 1,244,578.91, 1,717,685.39 and 728,490.65
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Solution
The fourth proportional to 1,244,578.91, 1,717,685.39 and 728,490.65 is: 1,005,414.55
Step by Step Solution
- Step 1: Write the proportion equation
1,244,578.91 : 1,717,685.39 = 728,490.65 : x - Step 2: Convert to fraction form
1,244,578.91/1,717,685.39 = 728,490.65/x - Step 3: Cross multiply
1,244,578.91x = 1,717,685.39 × 728,490.65 - Step 4: Simplify right side
1,244,578.91x = 1,251,317,739,489.40 - Step 5: Solve for x
x = 1,251,317,739,489.40/1,244,578.91 - Step 6: Final answer
x = 1,005,414.55
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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.