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Finding the Fourth Proportional to 494,382.77, 740,726.61 and 331,972.39

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Solution

The fourth proportional to 494,382.77, 740,726.61 and 331,972.39 is: 497,389.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,382.77 : 740,726.61 = 331,972.39 : x
  2. Step 2: Convert to fraction form
    494,382.77/740,726.61 = 331,972.39/x
  3. Step 3: Cross multiply
    494,382.77x = 740,726.61 × 331,972.39
  4. Step 4: Simplify right side
    494,382.77x = 245,900,783,058.30
  5. Step 5: Solve for x
    x = 245,900,783,058.30/494,382.77
  6. Step 6: Final answer
    x = 497,389.47

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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.