Home / 951,680.20-1,313,355.48-521,978.44

Finding the Fourth Proportional to 951,680.20, 1,313,355.48 and 521,978.44

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Solution

The fourth proportional to 951,680.20, 1,313,355.48 and 521,978.44 is: 720,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,680.20 : 1,313,355.48 = 521,978.44 : x
  2. Step 2: Convert to fraction form
    951,680.20/1,313,355.48 = 521,978.44/x
  3. Step 3: Cross multiply
    951,680.20x = 1,313,355.48 × 521,978.44
  4. Step 4: Simplify right side
    951,680.20x = 685,543,244,615.85
  5. Step 5: Solve for x
    x = 685,543,244,615.85/951,680.20
  6. Step 6: Final answer
    x = 720,350.43

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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.