Home / 1,268,890.57-1,751,082.47-688,114.83

Finding the Fourth Proportional to 1,268,890.57, 1,751,082.47 and 688,114.83

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Solution

The fourth proportional to 1,268,890.57, 1,751,082.47 and 688,114.83 is: 949,605.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,890.57 : 1,751,082.47 = 688,114.83 : x
  2. Step 2: Convert to fraction form
    1,268,890.57/1,751,082.47 = 688,114.83/x
  3. Step 3: Cross multiply
    1,268,890.57x = 1,751,082.47 × 688,114.83
  4. Step 4: Simplify right side
    1,268,890.57x = 1,204,945,812,719.46
  5. Step 5: Solve for x
    x = 1,204,945,812,719.46/1,268,890.57
  6. Step 6: Final answer
    x = 949,605.78

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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.