Home / 580,831.20-871,246.80-487,519.20

Finding the Fourth Proportional to 580,831.20, 871,246.80 and 487,519.20

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Solution

The fourth proportional to 580,831.20, 871,246.80 and 487,519.20 is: 731,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,831.20 : 871,246.80 = 487,519.20 : x
  2. Step 2: Convert to fraction form
    580,831.20/871,246.80 = 487,519.20/x
  3. Step 3: Cross multiply
    580,831.20x = 871,246.80 × 487,519.20
  4. Step 4: Simplify right side
    580,831.20x = 424,749,542,938.56
  5. Step 5: Solve for x
    x = 424,749,542,938.56/580,831.20
  6. Step 6: Final answer
    x = 731,278.80

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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.