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Finding the Fourth Proportional to 551,909.33, 827,864.01 and 172,859.73

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Solution

The fourth proportional to 551,909.33, 827,864.01 and 172,859.73 is: 259,289.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,909.33 : 827,864.01 = 172,859.73 : x
  2. Step 2: Convert to fraction form
    551,909.33/827,864.01 = 172,859.73/x
  3. Step 3: Cross multiply
    551,909.33x = 827,864.01 × 172,859.73
  4. Step 4: Simplify right side
    551,909.33x = 143,104,349,245.32
  5. Step 5: Solve for x
    x = 143,104,349,245.32/551,909.33
  6. Step 6: Final answer
    x = 259,289.60

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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.