Home / 583,391.20-875,086.80-490,079.20

Finding the Fourth Proportional to 583,391.20, 875,086.80 and 490,079.20

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Solution

The fourth proportional to 583,391.20, 875,086.80 and 490,079.20 is: 735,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,391.20 : 875,086.80 = 490,079.20 : x
  2. Step 2: Convert to fraction form
    583,391.20/875,086.80 = 490,079.20/x
  3. Step 3: Cross multiply
    583,391.20x = 875,086.80 × 490,079.20
  4. Step 4: Simplify right side
    583,391.20x = 428,861,838,874.56
  5. Step 5: Solve for x
    x = 428,861,838,874.56/583,391.20
  6. Step 6: Final answer
    x = 735,118.80

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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.