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Finding the Fourth Proportional to 573,727.56, 791,732.79 and 319,073.28

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Solution

The fourth proportional to 573,727.56, 791,732.79 and 319,073.28 is: 440,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,727.56 : 791,732.79 = 319,073.28 : x
  2. Step 2: Convert to fraction form
    573,727.56/791,732.79 = 319,073.28/x
  3. Step 3: Cross multiply
    573,727.56x = 791,732.79 × 319,073.28
  4. Step 4: Simplify right side
    573,727.56x = 252,620,778,188.85
  5. Step 5: Solve for x
    x = 252,620,778,188.85/573,727.56
  6. Step 6: Final answer
    x = 440,314.87

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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.