Home / 426,739.66-639,919.95-227,017.96

Finding the Fourth Proportional to 426,739.66, 639,919.95 and 227,017.96

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Solution

The fourth proportional to 426,739.66, 639,919.95 and 227,017.96 is: 340,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,739.66 : 639,919.95 = 227,017.96 : x
  2. Step 2: Convert to fraction form
    426,739.66/639,919.95 = 227,017.96/x
  3. Step 3: Cross multiply
    426,739.66x = 639,919.95 × 227,017.96
  4. Step 4: Simplify right side
    426,739.66x = 145,273,321,612.30
  5. Step 5: Solve for x
    x = 145,273,321,612.30/426,739.66
  6. Step 6: Final answer
    x = 340,426.11

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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.