Home / 426,785.68-639,686.04-160,375.87

Finding the Fourth Proportional to 426,785.68, 639,686.04 and 160,375.87

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Solution

The fourth proportional to 426,785.68, 639,686.04 and 160,375.87 is: 240,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,785.68 : 639,686.04 = 160,375.87 : x
  2. Step 2: Convert to fraction form
    426,785.68/639,686.04 = 160,375.87/x
  3. Step 3: Cross multiply
    426,785.68x = 639,686.04 × 160,375.87
  4. Step 4: Simplify right side
    426,785.68x = 102,590,205,191.86
  5. Step 5: Solve for x
    x = 102,590,205,191.86/426,785.68
  6. Step 6: Final answer
    x = 240,378.74

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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.