Home / 2,155,331.75-2,974,250.91-1,224,917.85

Finding the Fourth Proportional to 2,155,331.75, 2,974,250.91 and 1,224,917.85

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Solution

The fourth proportional to 2,155,331.75, 2,974,250.91 and 1,224,917.85 is: 1,690,325.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,331.75 : 2,974,250.91 = 1,224,917.85 : x
  2. Step 2: Convert to fraction form
    2,155,331.75/2,974,250.91 = 1,224,917.85/x
  3. Step 3: Cross multiply
    2,155,331.75x = 2,974,250.91 × 1,224,917.85
  4. Step 4: Simplify right side
    2,155,331.75x = 3,643,213,030,037.74
  5. Step 5: Solve for x
    x = 3,643,213,030,037.74/2,155,331.75
  6. Step 6: Final answer
    x = 1,690,325.88

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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.