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Finding the Fourth Proportional to 551,854.73, 827,335.65 and 172,580.33

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Solution

The fourth proportional to 551,854.73, 827,335.65 and 172,580.33 is: 258,730.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,854.73 : 827,335.65 = 172,580.33 : x
  2. Step 2: Convert to fraction form
    551,854.73/827,335.65 = 172,580.33/x
  3. Step 3: Cross multiply
    551,854.73x = 827,335.65 × 172,580.33
  4. Step 4: Simplify right side
    551,854.73x = 142,781,859,497.77
  5. Step 5: Solve for x
    x = 142,781,859,497.77/551,854.73
  6. Step 6: Final answer
    x = 258,730.88

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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.