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Finding the Fourth Proportional to 348,269.52, 522,404.28 and 278,591.70

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Solution

The fourth proportional to 348,269.52, 522,404.28 and 278,591.70 is: 417,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,269.52 : 522,404.28 = 278,591.70 : x
  2. Step 2: Convert to fraction form
    348,269.52/522,404.28 = 278,591.70/x
  3. Step 3: Cross multiply
    348,269.52x = 522,404.28 × 278,591.70
  4. Step 4: Simplify right side
    348,269.52x = 145,537,496,452.48
  5. Step 5: Solve for x
    x = 145,537,496,452.48/348,269.52
  6. Step 6: Final answer
    x = 417,887.55

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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.