Home / 868,920.78-1,198,768.58-542,043.57

Finding the Fourth Proportional to 868,920.78, 1,198,768.58 and 542,043.57

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Solution

The fourth proportional to 868,920.78, 1,198,768.58 and 542,043.57 is: 747,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,920.78 : 1,198,768.58 = 542,043.57 : x
  2. Step 2: Convert to fraction form
    868,920.78/1,198,768.58 = 542,043.57/x
  3. Step 3: Cross multiply
    868,920.78x = 1,198,768.58 × 542,043.57
  4. Step 4: Simplify right side
    868,920.78x = 649,784,797,996.81
  5. Step 5: Solve for x
    x = 649,784,797,996.81/868,920.78
  6. Step 6: Final answer
    x = 747,806.72

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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.