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Finding the Fourth Proportional to 401,950.17, 554,778.59 and 274,929.21

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Solution

The fourth proportional to 401,950.17, 554,778.59 and 274,929.21 is: 379,462.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,950.17 : 554,778.59 = 274,929.21 : x
  2. Step 2: Convert to fraction form
    401,950.17/554,778.59 = 274,929.21/x
  3. Step 3: Cross multiply
    401,950.17x = 554,778.59 × 274,929.21
  4. Step 4: Simplify right side
    401,950.17x = 152,524,838,098.97
  5. Step 5: Solve for x
    x = 152,524,838,098.97/401,950.17
  6. Step 6: Final answer
    x = 379,462.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.