Home / 381,334.40-572,001.60-319,126.40

Finding the Fourth Proportional to 381,334.40, 572,001.60 and 319,126.40

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Solution

The fourth proportional to 381,334.40, 572,001.60 and 319,126.40 is: 478,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,334.40 : 572,001.60 = 319,126.40 : x
  2. Step 2: Convert to fraction form
    381,334.40/572,001.60 = 319,126.40/x
  3. Step 3: Cross multiply
    381,334.40x = 572,001.60 × 319,126.40
  4. Step 4: Simplify right side
    381,334.40x = 182,540,811,402.24
  5. Step 5: Solve for x
    x = 182,540,811,402.24/381,334.40
  6. Step 6: Final answer
    x = 478,689.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.