Finding the Fourth Proportional to 808,142.76, 1,115,287.11 and 445,565.97
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Solution
The fourth proportional to 808,142.76, 1,115,287.11 and 445,565.97 is: 614,908.66
Step by Step Solution
- Step 1: Write the proportion equation
808,142.76 : 1,115,287.11 = 445,565.97 : x - Step 2: Convert to fraction form
808,142.76/1,115,287.11 = 445,565.97/x - Step 3: Cross multiply
808,142.76x = 1,115,287.11 × 445,565.97 - Step 4: Simplify right side
808,142.76x = 496,933,982,995.65 - Step 5: Solve for x
x = 496,933,982,995.65/808,142.76 - Step 6: Final answer
x = 614,908.66
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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.