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Finding the Fourth Proportional to 498,987.48, 748,667.12 and 299,451

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Solution

The fourth proportional to 498,987.48, 748,667.12 and 299,451 is: 449,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,987.48 : 748,667.12 = 299,451 : x
  2. Step 2: Convert to fraction form
    498,987.48/748,667.12 = 299,451/x
  3. Step 3: Cross multiply
    498,987.48x = 748,667.12 × 299,451
  4. Step 4: Simplify right side
    498,987.48x = 224,189,117,751.12
  5. Step 5: Solve for x
    x = 224,189,117,751.12/498,987.48
  6. Step 6: Final answer
    x = 449,288.06

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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.