Home / 458,305.13-687,456.48-258,534.83

Finding the Fourth Proportional to 458,305.13, 687,456.48 and 258,534.83

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Solution

The fourth proportional to 458,305.13, 687,456.48 and 258,534.83 is: 387,801.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,305.13 : 687,456.48 = 258,534.83 : x
  2. Step 2: Convert to fraction form
    458,305.13/687,456.48 = 258,534.83/x
  3. Step 3: Cross multiply
    458,305.13x = 687,456.48 × 258,534.83
  4. Step 4: Simplify right side
    458,305.13x = 177,731,444,189.20
  5. Step 5: Solve for x
    x = 177,731,444,189.20/458,305.13
  6. Step 6: Final answer
    x = 387,801.56

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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.