Finding the Fourth Proportional to 819,648.92, 1,131,120.42 and 457,095.68
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Solution
The fourth proportional to 819,648.92, 1,131,120.42 and 457,095.68 is: 630,794.78
Step by Step Solution
- Step 1: Write the proportion equation
819,648.92 : 1,131,120.42 = 457,095.68 : x - Step 2: Convert to fraction form
819,648.92/1,131,120.42 = 457,095.68/x - Step 3: Cross multiply
819,648.92x = 1,131,120.42 × 457,095.68 - Step 4: Simplify right side
819,648.92x = 517,030,257,541.79 - Step 5: Solve for x
x = 517,030,257,541.79/819,648.92 - Step 6: Final answer
x = 630,794.78
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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.