Home / 1,360,139.70-2,040,209.55-1,123,749.30

Finding the Fourth Proportional to 1,360,139.70, 2,040,209.55 and 1,123,749.30

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Solution

The fourth proportional to 1,360,139.70, 2,040,209.55 and 1,123,749.30 is: 1,685,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360,139.70 : 2,040,209.55 = 1,123,749.30 : x
  2. Step 2: Convert to fraction form
    1,360,139.70/2,040,209.55 = 1,123,749.30/x
  3. Step 3: Cross multiply
    1,360,139.70x = 2,040,209.55 × 1,123,749.30
  4. Step 4: Simplify right side
    1,360,139.70x = 2,292,684,053,665.82
  5. Step 5: Solve for x
    x = 2,292,684,053,665.82/1,360,139.70
  6. Step 6: Final answer
    x = 1,685,623.95

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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.