Home / 1,255,029.12-1,731,873.74-711,171.41

Finding the Fourth Proportional to 1,255,029.12, 1,731,873.74 and 711,171.41

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Solution

The fourth proportional to 1,255,029.12, 1,731,873.74 and 711,171.41 is: 981,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,029.12 : 1,731,873.74 = 711,171.41 : x
  2. Step 2: Convert to fraction form
    1,255,029.12/1,731,873.74 = 711,171.41/x
  3. Step 3: Cross multiply
    1,255,029.12x = 1,731,873.74 × 711,171.41
  4. Step 4: Simplify right side
    1,255,029.12x = 1,231,659,077,402.55
  5. Step 5: Solve for x
    x = 1,231,659,077,402.55/1,255,029.12
  6. Step 6: Final answer
    x = 981,378.88

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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.