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Finding the Fourth Proportional to 488,744.88, 732,662.88 and 189,420.72

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Solution

The fourth proportional to 488,744.88, 732,662.88 and 189,420.72 is: 283,954.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,744.88 : 732,662.88 = 189,420.72 : x
  2. Step 2: Convert to fraction form
    488,744.88/732,662.88 = 189,420.72/x
  3. Step 3: Cross multiply
    488,744.88x = 732,662.88 × 189,420.72
  4. Step 4: Simplify right side
    488,744.88x = 138,781,530,246.87
  5. Step 5: Solve for x
    x = 138,781,530,246.87/488,744.88
  6. Step 6: Final answer
    x = 283,954.95

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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.