Home / 1,224,947.85-1,690,383.78-673,658.79

Finding the Fourth Proportional to 1,224,947.85, 1,690,383.78 and 673,658.79

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Solution

The fourth proportional to 1,224,947.85, 1,690,383.78 and 673,658.79 is: 929,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,947.85 : 1,690,383.78 = 673,658.79 : x
  2. Step 2: Convert to fraction form
    1,224,947.85/1,690,383.78 = 673,658.79/x
  3. Step 3: Cross multiply
    1,224,947.85x = 1,690,383.78 × 673,658.79
  4. Step 4: Simplify right side
    1,224,947.85x = 1,138,741,891,870.43
  5. Step 5: Solve for x
    x = 1,138,741,891,870.43/1,224,947.85
  6. Step 6: Final answer
    x = 929,624.79

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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.