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Finding the Fourth Proportional to 435,407.78, 652,769.44 and 275,146.64

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Solution

The fourth proportional to 435,407.78, 652,769.44 and 275,146.64 is: 412,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,407.78 : 652,769.44 = 275,146.64 : x
  2. Step 2: Convert to fraction form
    435,407.78/652,769.44 = 275,146.64/x
  3. Step 3: Cross multiply
    435,407.78x = 652,769.44 × 275,146.64
  4. Step 4: Simplify right side
    435,407.78x = 179,607,320,134.57
  5. Step 5: Solve for x
    x = 179,607,320,134.57/435,407.78
  6. Step 6: Final answer
    x = 412,503.70

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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.