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Finding the Fourth Proportional to 488,375.16, 731,381.67 and 422,240.28

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Solution

The fourth proportional to 488,375.16, 731,381.67 and 422,240.28 is: 632,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,375.16 : 731,381.67 = 422,240.28 : x
  2. Step 2: Convert to fraction form
    488,375.16/731,381.67 = 422,240.28/x
  3. Step 3: Cross multiply
    488,375.16x = 731,381.67 × 422,240.28
  4. Step 4: Simplify right side
    488,375.16x = 308,818,801,127.67
  5. Step 5: Solve for x
    x = 308,818,801,127.67/488,375.16
  6. Step 6: Final answer
    x = 632,339.29

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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.