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Finding the Fourth Proportional to 488,463.26, 674,086.30 and 284,508.91

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Solution

The fourth proportional to 488,463.26, 674,086.30 and 284,508.91 is: 392,626.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,463.26 : 674,086.30 = 284,508.91 : x
  2. Step 2: Convert to fraction form
    488,463.26/674,086.30 = 284,508.91/x
  3. Step 3: Cross multiply
    488,463.26x = 674,086.30 × 284,508.91
  4. Step 4: Simplify right side
    488,463.26x = 191,783,555,088.50
  5. Step 5: Solve for x
    x = 191,783,555,088.50/488,463.26
  6. Step 6: Final answer
    x = 392,626.37

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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.