Home / 498,525.57-687,961.78-272,171.07

Finding the Fourth Proportional to 498,525.57, 687,961.78 and 272,171.07

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Solution

The fourth proportional to 498,525.57, 687,961.78 and 272,171.07 is: 375,594.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,525.57 : 687,961.78 = 272,171.07 : x
  2. Step 2: Convert to fraction form
    498,525.57/687,961.78 = 272,171.07/x
  3. Step 3: Cross multiply
    498,525.57x = 687,961.78 × 272,171.07
  4. Step 4: Simplify right side
    498,525.57x = 187,243,293,101.28
  5. Step 5: Solve for x
    x = 187,243,293,101.28/498,525.57
  6. Step 6: Final answer
    x = 375,594.16

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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.