Home / 2,187,465.54-3,019,336.11-1,269,900.78

Finding the Fourth Proportional to 2,187,465.54, 3,019,336.11 and 1,269,900.78

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Solution

The fourth proportional to 2,187,465.54, 3,019,336.11 and 1,269,900.78 is: 1,752,830.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,465.54 : 3,019,336.11 = 1,269,900.78 : x
  2. Step 2: Convert to fraction form
    2,187,465.54/3,019,336.11 = 1,269,900.78/x
  3. Step 3: Cross multiply
    2,187,465.54x = 3,019,336.11 × 1,269,900.78
  4. Step 4: Simplify right side
    2,187,465.54x = 3,834,257,281,171.17
  5. Step 5: Solve for x
    x = 3,834,257,281,171.17/2,187,465.54
  6. Step 6: Final answer
    x = 1,752,830.94

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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.