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Finding the Fourth Proportional to 532,887.72, 735,390.20 and 291,170.28

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Solution

The fourth proportional to 532,887.72, 735,390.20 and 291,170.28 is: 401,817.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,887.72 : 735,390.20 = 291,170.28 : x
  2. Step 2: Convert to fraction form
    532,887.72/735,390.20 = 291,170.28/x
  3. Step 3: Cross multiply
    532,887.72x = 735,390.20 × 291,170.28
  4. Step 4: Simplify right side
    532,887.72x = 214,123,770,443.26
  5. Step 5: Solve for x
    x = 214,123,770,443.26/532,887.72
  6. Step 6: Final answer
    x = 401,817.80

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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.