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Finding the Fourth Proportional to 646,759.24, 970,138.92 and 247,522.48

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Solution

The fourth proportional to 646,759.24, 970,138.92 and 247,522.48 is: 371,283.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,759.24 : 970,138.92 = 247,522.48 : x
  2. Step 2: Convert to fraction form
    646,759.24/970,138.92 = 247,522.48/x
  3. Step 3: Cross multiply
    646,759.24x = 970,138.92 × 247,522.48
  4. Step 4: Simplify right side
    646,759.24x = 240,131,191,422.92
  5. Step 5: Solve for x
    x = 240,131,191,422.92/646,759.24
  6. Step 6: Final answer
    x = 371,283.74

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Double scale
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Similar ratio
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1.5x scale

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.