Finding the Fourth Proportional to 742,423.44, 1,024,538.36 and 402,891.68
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Solution
The fourth proportional to 742,423.44, 1,024,538.36 and 402,891.68 is: 555,987.27
Step by Step Solution
- Step 1: Write the proportion equation
742,423.44 : 1,024,538.36 = 402,891.68 : x - Step 2: Convert to fraction form
742,423.44/1,024,538.36 = 402,891.68/x - Step 3: Cross multiply
742,423.44x = 1,024,538.36 × 402,891.68 - Step 4: Simplify right side
742,423.44x = 412,777,981,084.85 - Step 5: Solve for x
x = 412,777,981,084.85/742,423.44 - Step 6: Final answer
x = 555,987.27
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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.