Home / 426,049.10-639,073.65-268,973.90

Finding the Fourth Proportional to 426,049.10, 639,073.65 and 268,973.90

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Solution

The fourth proportional to 426,049.10, 639,073.65 and 268,973.90 is: 403,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,049.10 : 639,073.65 = 268,973.90 : x
  2. Step 2: Convert to fraction form
    426,049.10/639,073.65 = 268,973.90/x
  3. Step 3: Cross multiply
    426,049.10x = 639,073.65 × 268,973.90
  4. Step 4: Simplify right side
    426,049.10x = 171,894,132,027.74
  5. Step 5: Solve for x
    x = 171,894,132,027.74/426,049.10
  6. Step 6: Final answer
    x = 403,460.85

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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.