Home / 680,301.92-1,019,562.24-280,477.28

Finding the Fourth Proportional to 680,301.92, 1,019,562.24 and 280,477.28

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Solution

The fourth proportional to 680,301.92, 1,019,562.24 and 280,477.28 is: 420,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,301.92 : 1,019,562.24 = 280,477.28 : x
  2. Step 2: Convert to fraction form
    680,301.92/1,019,562.24 = 280,477.28/x
  3. Step 3: Cross multiply
    680,301.92x = 1,019,562.24 × 280,477.28
  4. Step 4: Simplify right side
    680,301.92x = 285,964,043,865.91
  5. Step 5: Solve for x
    x = 285,964,043,865.91/680,301.92
  6. Step 6: Final answer
    x = 420,348.72

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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.