Home / 498,422.16-687,822.35-272,067.66

Finding the Fourth Proportional to 498,422.16, 687,822.35 and 272,067.66

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Solution

The fourth proportional to 498,422.16, 687,822.35 and 272,067.66 is: 375,453.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,422.16 : 687,822.35 = 272,067.66 : x
  2. Step 2: Convert to fraction form
    498,422.16/687,822.35 = 272,067.66/x
  3. Step 3: Cross multiply
    498,422.16x = 687,822.35 × 272,067.66
  4. Step 4: Simplify right side
    498,422.16x = 187,134,215,899.86
  5. Step 5: Solve for x
    x = 187,134,215,899.86/498,422.16
  6. Step 6: Final answer
    x = 375,453.24

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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.