Home / 638,989.20-960,452.10-603,559.80

Finding the Fourth Proportional to 638,989.20, 960,452.10 and 603,559.80

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Solution

The fourth proportional to 638,989.20, 960,452.10 and 603,559.80 is: 907,198.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,989.20 : 960,452.10 = 603,559.80 : x
  2. Step 2: Convert to fraction form
    638,989.20/960,452.10 = 603,559.80/x
  3. Step 3: Cross multiply
    638,989.20x = 960,452.10 × 603,559.80
  4. Step 4: Simplify right side
    638,989.20x = 579,690,277,385.58
  5. Step 5: Solve for x
    x = 579,690,277,385.58/638,989.20
  6. Step 6: Final answer
    x = 907,198.87

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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.