Finding the Fourth Proportional to 658,121.08, 908,209.92 and 356,315.08
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Solution
The fourth proportional to 658,121.08, 908,209.92 and 356,315.08 is: 491,716.34
Step by Step Solution
- Step 1: Write the proportion equation
658,121.08 : 908,209.92 = 356,315.08 : x - Step 2: Convert to fraction form
658,121.08/908,209.92 = 356,315.08/x - Step 3: Cross multiply
658,121.08x = 908,209.92 × 356,315.08 - Step 4: Simplify right side
658,121.08x = 323,608,890,301.59 - Step 5: Solve for x
x = 323,608,890,301.59/658,121.08 - Step 6: Final answer
x = 491,716.34
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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.