Home / 648,121.20-970,869.60-367,310.40

Finding the Fourth Proportional to 648,121.20, 970,869.60 and 367,310.40

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Solution

The fourth proportional to 648,121.20, 970,869.60 and 367,310.40 is: 550,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,121.20 : 970,869.60 = 367,310.40 : x
  2. Step 2: Convert to fraction form
    648,121.20/970,869.60 = 367,310.40/x
  3. Step 3: Cross multiply
    648,121.20x = 970,869.60 × 367,310.40
  4. Step 4: Simplify right side
    648,121.20x = 356,610,501,123.84
  5. Step 5: Solve for x
    x = 356,610,501,123.84/648,121.20
  6. Step 6: Final answer
    x = 550,221.94

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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.