Home / 769,100.76-1,061,380.44-424,958.86

Finding the Fourth Proportional to 769,100.76, 1,061,380.44 and 424,958.86

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Solution

The fourth proportional to 769,100.76, 1,061,380.44 and 424,958.86 is: 586,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,100.76 : 1,061,380.44 = 424,958.86 : x
  2. Step 2: Convert to fraction form
    769,100.76/1,061,380.44 = 424,958.86/x
  3. Step 3: Cross multiply
    769,100.76x = 1,061,380.44 × 424,958.86
  4. Step 4: Simplify right side
    769,100.76x = 451,043,024,729.02
  5. Step 5: Solve for x
    x = 451,043,024,729.02/769,100.76
  6. Step 6: Final answer
    x = 586,455.05

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Double scale
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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.