Home / 726,324.57-1,002,257.55-420,340.32

Finding the Fourth Proportional to 726,324.57, 1,002,257.55 and 420,340.32

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Solution

The fourth proportional to 726,324.57, 1,002,257.55 and 420,340.32 is: 580,028.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,324.57 : 1,002,257.55 = 420,340.32 : x
  2. Step 2: Convert to fraction form
    726,324.57/1,002,257.55 = 420,340.32/x
  3. Step 3: Cross multiply
    726,324.57x = 1,002,257.55 × 420,340.32
  4. Step 4: Simplify right side
    726,324.57x = 421,289,259,289.42
  5. Step 5: Solve for x
    x = 421,289,259,289.42/726,324.57
  6. Step 6: Final answer
    x = 580,028.92

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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.