Finding the Fourth Proportional to 473,489.12, 653,434.20 and 272,285.12
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Solution
The fourth proportional to 473,489.12, 653,434.20 and 272,285.12 is: 375,764.52
Step by Step Solution
- Step 1: Write the proportion equation
473,489.12 : 653,434.20 = 272,285.12 : x - Step 2: Convert to fraction form
473,489.12/653,434.20 = 272,285.12/x - Step 3: Cross multiply
473,489.12x = 653,434.20 × 272,285.12 - Step 4: Simplify right side
473,489.12x = 177,920,409,559.10 - Step 5: Solve for x
x = 177,920,409,559.10/473,489.12 - Step 6: Final answer
x = 375,764.52
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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.