Home / 1,263,372.35-1,743,454.65-690,412.56

Finding the Fourth Proportional to 1,263,372.35, 1,743,454.65 and 690,412.56

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Solution

The fourth proportional to 1,263,372.35, 1,743,454.65 and 690,412.56 is: 952,769.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,372.35 : 1,743,454.65 = 690,412.56 : x
  2. Step 2: Convert to fraction form
    1,263,372.35/1,743,454.65 = 690,412.56/x
  3. Step 3: Cross multiply
    1,263,372.35x = 1,743,454.65 × 690,412.56
  4. Step 4: Simplify right side
    1,263,372.35x = 1,203,702,988,150.40
  5. Step 5: Solve for x
    x = 1,203,702,988,150.40/1,263,372.35
  6. Step 6: Final answer
    x = 952,769.78

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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.