Home / 645,491.20-968,006.40-224,780.80

Finding the Fourth Proportional to 645,491.20, 968,006.40 and 224,780.80

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Solution

The fourth proportional to 645,491.20, 968,006.40 and 224,780.80 is: 337,090.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,491.20 : 968,006.40 = 224,780.80 : x
  2. Step 2: Convert to fraction form
    645,491.20/968,006.40 = 224,780.80/x
  3. Step 3: Cross multiply
    645,491.20x = 968,006.40 × 224,780.80
  4. Step 4: Simplify right side
    645,491.20x = 217,589,252,997.12
  5. Step 5: Solve for x
    x = 217,589,252,997.12/645,491.20
  6. Step 6: Final answer
    x = 337,090.97

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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.