Home / 2,120,134.60-2,925,861.78-1,214,891.56

Finding the Fourth Proportional to 2,120,134.60, 2,925,861.78 and 1,214,891.56

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Solution

The fourth proportional to 2,120,134.60, 2,925,861.78 and 1,214,891.56 is: 1,676,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,134.60 : 2,925,861.78 = 1,214,891.56 : x
  2. Step 2: Convert to fraction form
    2,120,134.60/2,925,861.78 = 1,214,891.56/x
  3. Step 3: Cross multiply
    2,120,134.60x = 2,925,861.78 × 1,214,891.56
  4. Step 4: Simplify right side
    2,120,134.60x = 3,554,604,782,248.58
  5. Step 5: Solve for x
    x = 3,554,604,782,248.58/2,120,134.60
  6. Step 6: Final answer
    x = 1,676,593.92

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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.