Home / 769,428.27-1,061,865.99-425,256.80

Finding the Fourth Proportional to 769,428.27, 1,061,865.99 and 425,256.80

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Solution

The fourth proportional to 769,428.27, 1,061,865.99 and 425,256.80 is: 586,884.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,428.27 : 1,061,865.99 = 425,256.80 : x
  2. Step 2: Convert to fraction form
    769,428.27/1,061,865.99 = 425,256.80/x
  3. Step 3: Cross multiply
    769,428.27x = 1,061,865.99 × 425,256.80
  4. Step 4: Simplify right side
    769,428.27x = 451,565,727,626.90
  5. Step 5: Solve for x
    x = 451,565,727,626.90/769,428.27
  6. Step 6: Final answer
    x = 586,884.76

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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.