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Finding the Fourth Proportional to 482,374.98, 665,982.41 and 310,372.92

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Solution

The fourth proportional to 482,374.98, 665,982.41 and 310,372.92 is: 428,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,374.98 : 665,982.41 = 310,372.92 : x
  2. Step 2: Convert to fraction form
    482,374.98/665,982.41 = 310,372.92/x
  3. Step 3: Cross multiply
    482,374.98x = 665,982.41 × 310,372.92
  4. Step 4: Simplify right side
    482,374.98x = 206,702,903,708.47
  5. Step 5: Solve for x
    x = 206,702,903,708.47/482,374.98
  6. Step 6: Final answer
    x = 428,510.83

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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.