Home / 1,491,231.06-2,057,921.64-812,167.56

Finding the Fourth Proportional to 1,491,231.06, 2,057,921.64 and 812,167.56

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Solution

The fourth proportional to 1,491,231.06, 2,057,921.64 and 812,167.56 is: 1,120,803.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,231.06 : 2,057,921.64 = 812,167.56 : x
  2. Step 2: Convert to fraction form
    1,491,231.06/2,057,921.64 = 812,167.56/x
  3. Step 3: Cross multiply
    1,491,231.06x = 2,057,921.64 × 812,167.56
  4. Step 4: Simplify right side
    1,491,231.06x = 1,671,377,197,030.00
  5. Step 5: Solve for x
    x = 1,671,377,197,030.00/1,491,231.06
  6. Step 6: Final answer
    x = 1,120,803.64

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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.