Home / 812,989.56-1,219,226.01-759,919.29

Finding the Fourth Proportional to 812,989.56, 1,219,226.01 and 759,919.29

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Solution

The fourth proportional to 812,989.56, 1,219,226.01 and 759,919.29 is: 1,139,637.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,989.56 : 1,219,226.01 = 759,919.29 : x
  2. Step 2: Convert to fraction form
    812,989.56/1,219,226.01 = 759,919.29/x
  3. Step 3: Cross multiply
    812,989.56x = 1,219,226.01 × 759,919.29
  4. Step 4: Simplify right side
    812,989.56x = 926,513,363,868.73
  5. Step 5: Solve for x
    x = 926,513,363,868.73/812,989.56
  6. Step 6: Final answer
    x = 1,139,637.47

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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.