Finding the Fourth Proportional to 646,614.48, 892,292.68 and 356,169.12
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Solution
The fourth proportional to 646,614.48, 892,292.68 and 356,169.12 is: 491,493.94
Step by Step Solution
- Step 1: Write the proportion equation
646,614.48 : 892,292.68 = 356,169.12 : x - Step 2: Convert to fraction form
646,614.48/892,292.68 = 356,169.12/x - Step 3: Cross multiply
646,614.48x = 892,292.68 × 356,169.12 - Step 4: Simplify right side
646,614.48x = 317,807,098,618.04 - Step 5: Solve for x
x = 317,807,098,618.04/646,614.48 - Step 6: Final answer
x = 491,493.94
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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.