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Finding the Fourth Proportional to 488,708.90, 732,844.65 and 189,089.90

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Solution

The fourth proportional to 488,708.90, 732,844.65 and 189,089.90 is: 283,550.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,708.90 : 732,844.65 = 189,089.90 : x
  2. Step 2: Convert to fraction form
    488,708.90/732,844.65 = 189,089.90/x
  3. Step 3: Cross multiply
    488,708.90x = 732,844.65 × 189,089.90
  4. Step 4: Simplify right side
    488,708.90x = 138,573,521,584.04
  5. Step 5: Solve for x
    x = 138,573,521,584.04/488,708.90
  6. Step 6: Final answer
    x = 283,550.23

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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.