Home / 1,311,956.46-1,810,426.71-723,236.90

Finding the Fourth Proportional to 1,311,956.46, 1,810,426.71 and 723,236.90

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Solution

The fourth proportional to 1,311,956.46, 1,810,426.71 and 723,236.90 is: 998,026.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,956.46 : 1,810,426.71 = 723,236.90 : x
  2. Step 2: Convert to fraction form
    1,311,956.46/1,810,426.71 = 723,236.90/x
  3. Step 3: Cross multiply
    1,311,956.46x = 1,810,426.71 × 723,236.90
  4. Step 4: Simplify right side
    1,311,956.46x = 1,309,367,392,365.47
  5. Step 5: Solve for x
    x = 1,309,367,392,365.47/1,311,956.46
  6. Step 6: Final answer
    x = 998,026.56

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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.