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Finding the Fourth Proportional to 494,383.28, 740,727.36 and 331,972.89

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Solution

The fourth proportional to 494,383.28, 740,727.36 and 331,972.89 is: 497,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,383.28 : 740,727.36 = 331,972.89 : x
  2. Step 2: Convert to fraction form
    494,383.28/740,727.36 = 331,972.89/x
  3. Step 3: Cross multiply
    494,383.28x = 740,727.36 × 331,972.89
  4. Step 4: Simplify right side
    494,383.28x = 245,901,402,401.27
  5. Step 5: Solve for x
    x = 245,901,402,401.27/494,383.28
  6. Step 6: Final answer
    x = 497,390.21

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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.