Home / 2,227,609.20-3,074,082.12-1,209,013.68

Finding the Fourth Proportional to 2,227,609.20, 3,074,082.12 and 1,209,013.68

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Solution

The fourth proportional to 2,227,609.20, 3,074,082.12 and 1,209,013.68 is: 1,668,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,227,609.20 : 3,074,082.12 = 1,209,013.68 : x
  2. Step 2: Convert to fraction form
    2,227,609.20/3,074,082.12 = 1,209,013.68/x
  3. Step 3: Cross multiply
    2,227,609.20x = 3,074,082.12 × 1,209,013.68
  4. Step 4: Simplify right side
    2,227,609.20x = 3,716,607,336,523.40
  5. Step 5: Solve for x
    x = 3,716,607,336,523.40/2,227,609.20
  6. Step 6: Final answer
    x = 1,668,428.80

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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.