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Finding the Fourth Proportional to 488,879.80, 732,882.30 and 189,260.80

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Solution

The fourth proportional to 488,879.80, 732,882.30 and 189,260.80 is: 283,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,879.80 : 732,882.30 = 189,260.80 : x
  2. Step 2: Convert to fraction form
    488,879.80/732,882.30 = 189,260.80/x
  3. Step 3: Cross multiply
    488,879.80x = 732,882.30 × 189,260.80
  4. Step 4: Simplify right side
    488,879.80x = 138,705,890,403.84
  5. Step 5: Solve for x
    x = 138,705,890,403.84/488,879.80
  6. Step 6: Final answer
    x = 283,721.87

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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.