Home / 2,378,765.73-3,282,708.87-1,398,649.38

Finding the Fourth Proportional to 2,378,765.73, 3,282,708.87 and 1,398,649.38

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Solution

The fourth proportional to 2,378,765.73, 3,282,708.87 and 1,398,649.38 is: 1,930,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378,765.73 : 3,282,708.87 = 1,398,649.38 : x
  2. Step 2: Convert to fraction form
    2,378,765.73/3,282,708.87 = 1,398,649.38/x
  3. Step 3: Cross multiply
    2,378,765.73x = 3,282,708.87 × 1,398,649.38
  4. Step 4: Simplify right side
    2,378,765.73x = 4,591,358,713,435.84
  5. Step 5: Solve for x
    x = 4,591,358,713,435.84/2,378,765.73
  6. Step 6: Final answer
    x = 1,930,143.29

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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.