Home / 1,351,287.12-2,022,889.72-817,191.76

Finding the Fourth Proportional to 1,351,287.12, 2,022,889.72 and 817,191.76

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Solution

The fourth proportional to 1,351,287.12, 2,022,889.72 and 817,191.76 is: 1,223,343.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,287.12 : 2,022,889.72 = 817,191.76 : x
  2. Step 2: Convert to fraction form
    1,351,287.12/2,022,889.72 = 817,191.76/x
  3. Step 3: Cross multiply
    1,351,287.12x = 2,022,889.72 × 817,191.76
  4. Step 4: Simplify right side
    1,351,287.12x = 1,653,088,810,572.71
  5. Step 5: Solve for x
    x = 1,653,088,810,572.71/1,351,287.12
  6. Step 6: Final answer
    x = 1,223,343.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.