Home / 925,534.20-1,387,645.20-420,337.20

Finding the Fourth Proportional to 925,534.20, 1,387,645.20 and 420,337.20

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Solution

The fourth proportional to 925,534.20, 1,387,645.20 and 420,337.20 is: 630,207.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,534.20 : 1,387,645.20 = 420,337.20 : x
  2. Step 2: Convert to fraction form
    925,534.20/1,387,645.20 = 420,337.20/x
  3. Step 3: Cross multiply
    925,534.20x = 1,387,645.20 × 420,337.20
  4. Step 4: Simplify right side
    925,534.20x = 583,278,897,961.44
  5. Step 5: Solve for x
    x = 583,278,897,961.44/925,534.20
  6. Step 6: Final answer
    x = 630,207.83

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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.