Home / 498,317.83-687,669.01-271,964.95

Finding the Fourth Proportional to 498,317.83, 687,669.01 and 271,964.95

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Solution

The fourth proportional to 498,317.83, 687,669.01 and 271,964.95 is: 375,306.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,317.83 : 687,669.01 = 271,964.95 : x
  2. Step 2: Convert to fraction form
    498,317.83/687,669.01 = 271,964.95/x
  3. Step 3: Cross multiply
    498,317.83x = 687,669.01 × 271,964.95
  4. Step 4: Simplify right side
    498,317.83x = 187,021,867,921.20
  5. Step 5: Solve for x
    x = 187,021,867,921.20/498,317.83
  6. Step 6: Final answer
    x = 375,306.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.