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Finding the Fourth Proportional to 521,453.70, 781,641.24 and 296,329.39

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Solution

The fourth proportional to 521,453.70, 781,641.24 and 296,329.39 is: 444,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,453.70 : 781,641.24 = 296,329.39 : x
  2. Step 2: Convert to fraction form
    521,453.70/781,641.24 = 296,329.39/x
  3. Step 3: Cross multiply
    521,453.70x = 781,641.24 × 296,329.39
  4. Step 4: Simplify right side
    521,453.70x = 231,623,270,449.56
  5. Step 5: Solve for x
    x = 231,623,270,449.56/521,453.70
  6. Step 6: Final answer
    x = 444,187.61

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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.