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Finding the Fourth Proportional to 489,162.90, 732,760.20 and 329,730.60

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Solution

The fourth proportional to 489,162.90, 732,760.20 and 329,730.60 is: 493,932.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,162.90 : 732,760.20 = 329,730.60 : x
  2. Step 2: Convert to fraction form
    489,162.90/732,760.20 = 329,730.60/x
  3. Step 3: Cross multiply
    489,162.90x = 732,760.20 × 329,730.60
  4. Step 4: Simplify right side
    489,162.90x = 241,613,460,402.12
  5. Step 5: Solve for x
    x = 241,613,460,402.12/489,162.90
  6. Step 6: Final answer
    x = 493,932.51

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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.