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Finding the Fourth Proportional to 488,280, 673,769.68 and 284,375.52

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Solution

The fourth proportional to 488,280, 673,769.68 and 284,375.52 is: 392,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,280 : 673,769.68 = 284,375.52 : x
  2. Step 2: Convert to fraction form
    488,280/673,769.68 = 284,375.52/x
  3. Step 3: Cross multiply
    488,280x = 673,769.68 × 284,375.52
  4. Step 4: Simplify right side
    488,280x = 191,603,603,110.23
  5. Step 5: Solve for x
    x = 191,603,603,110.23/488,280
  6. Step 6: Final answer
    x = 392,405.18

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1.5x scale

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.