Home / 812,989.83-1,219,226.39-759,919.53

Finding the Fourth Proportional to 812,989.83, 1,219,226.39 and 759,919.53

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Solution

The fourth proportional to 812,989.83, 1,219,226.39 and 759,919.53 is: 1,139,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,989.83 : 1,219,226.39 = 759,919.53 : x
  2. Step 2: Convert to fraction form
    812,989.83/1,219,226.39 = 759,919.53/x
  3. Step 3: Cross multiply
    812,989.83x = 1,219,226.39 × 759,919.53
  4. Step 4: Simplify right side
    812,989.83x = 926,513,945,252.40
  5. Step 5: Solve for x
    x = 926,513,945,252.40/812,989.83
  6. Step 6: Final answer
    x = 1,139,637.80

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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.