Home / 488,079.18-731,947.19-146,420.73

Finding the Fourth Proportional to 488,079.18, 731,947.19 and 146,420.73

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Solution

The fourth proportional to 488,079.18, 731,947.19 and 146,420.73 is: 219,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,079.18 : 731,947.19 = 146,420.73 : x
  2. Step 2: Convert to fraction form
    488,079.18/731,947.19 = 146,420.73/x
  3. Step 3: Cross multiply
    488,079.18x = 731,947.19 × 146,420.73
  4. Step 4: Simplify right side
    488,079.18x = 107,172,241,149.15
  5. Step 5: Solve for x
    x = 107,172,241,149.15/488,079.18
  6. Step 6: Final answer
    x = 219,579.62

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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.