Finding the Fourth Proportional to 642,445.92, 886,562.28 and 355,965.12
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Solution
The fourth proportional to 642,445.92, 886,562.28 and 355,965.12 is: 491,224.61
Step by Step Solution
- Step 1: Write the proportion equation
642,445.92 : 886,562.28 = 355,965.12 : x - Step 2: Convert to fraction form
642,445.92/886,562.28 = 355,965.12/x - Step 3: Cross multiply
642,445.92x = 886,562.28 × 355,965.12 - Step 4: Simplify right side
642,445.92x = 315,585,248,387.67 - Step 5: Solve for x
x = 315,585,248,387.67/642,445.92 - Step 6: Final answer
x = 491,224.61
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1.5x scale
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.