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Finding the Fourth Proportional to 403,769.54, 605,658.95 and 172,927.29

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Solution

The fourth proportional to 403,769.54, 605,658.95 and 172,927.29 is: 259,392.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,769.54 : 605,658.95 = 172,927.29 : x
  2. Step 2: Convert to fraction form
    403,769.54/605,658.95 = 172,927.29/x
  3. Step 3: Cross multiply
    403,769.54x = 605,658.95 × 172,927.29
  4. Step 4: Simplify right side
    403,769.54x = 104,734,960,023.11
  5. Step 5: Solve for x
    x = 104,734,960,023.11/403,769.54
  6. Step 6: Final answer
    x = 259,392.92

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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.