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Finding the Fourth Proportional to 482,375.98, 665,983.79 and 310,373.92

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Solution

The fourth proportional to 482,375.98, 665,983.79 and 310,373.92 is: 428,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,375.98 : 665,983.79 = 310,373.92 : x
  2. Step 2: Convert to fraction form
    482,375.98/665,983.79 = 310,373.92/x
  3. Step 3: Cross multiply
    482,375.98x = 665,983.79 × 310,373.92
  4. Step 4: Simplify right side
    482,375.98x = 206,703,999,558.76
  5. Step 5: Solve for x
    x = 206,703,999,558.76/482,375.98
  6. Step 6: Final answer
    x = 428,512.21

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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.