Home / 390,922.20-586,439.19-124,685.73

Finding the Fourth Proportional to 390,922.20, 586,439.19 and 124,685.73

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Solution

The fourth proportional to 390,922.20, 586,439.19 and 124,685.73 is: 187,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,922.20 : 586,439.19 = 124,685.73 : x
  2. Step 2: Convert to fraction form
    390,922.20/586,439.19 = 124,685.73/x
  3. Step 3: Cross multiply
    390,922.20x = 586,439.19 × 124,685.73
  4. Step 4: Simplify right side
    390,922.20x = 73,120,598,505.76
  5. Step 5: Solve for x
    x = 73,120,598,505.76/390,922.20
  6. Step 6: Final answer
    x = 187,046.42

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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.