Finding the Fourth Proportional to 742,579.92, 1,024,761.12 and 403,048.08
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Solution
The fourth proportional to 742,579.92, 1,024,761.12 and 403,048.08 is: 556,206.80
Step by Step Solution
- Step 1: Write the proportion equation
742,579.92 : 1,024,761.12 = 403,048.08 : x - Step 2: Convert to fraction form
742,579.92/1,024,761.12 = 403,048.08/x - Step 3: Cross multiply
742,579.92x = 1,024,761.12 × 403,048.08 - Step 4: Simplify right side
742,579.92x = 413,028,001,874.65 - Step 5: Solve for x
x = 413,028,001,874.65/742,579.92 - Step 6: Final answer
x = 556,206.80
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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.