Home / 1,147,246.20-1,720,869.30-726,996.60

Finding the Fourth Proportional to 1,147,246.20, 1,720,869.30 and 726,996.60

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Solution

The fourth proportional to 1,147,246.20, 1,720,869.30 and 726,996.60 is: 1,090,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,246.20 : 1,720,869.30 = 726,996.60 : x
  2. Step 2: Convert to fraction form
    1,147,246.20/1,720,869.30 = 726,996.60/x
  3. Step 3: Cross multiply
    1,147,246.20x = 1,720,869.30 × 726,996.60
  4. Step 4: Simplify right side
    1,147,246.20x = 1,251,066,130,144.38
  5. Step 5: Solve for x
    x = 1,251,066,130,144.38/1,147,246.20
  6. Step 6: Final answer
    x = 1,090,494.90

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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.