Home / 1,123,169.64-1,549,794.92-639,744.23

Finding the Fourth Proportional to 1,123,169.64, 1,549,794.92 and 639,744.23

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Solution

The fourth proportional to 1,123,169.64, 1,549,794.92 and 639,744.23 is: 882,744.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,169.64 : 1,549,794.92 = 639,744.23 : x
  2. Step 2: Convert to fraction form
    1,123,169.64/1,549,794.92 = 639,744.23/x
  3. Step 3: Cross multiply
    1,123,169.64x = 1,549,794.92 × 639,744.23
  4. Step 4: Simplify right side
    1,123,169.64x = 991,472,346,805.62
  5. Step 5: Solve for x
    x = 991,472,346,805.62/1,123,169.64
  6. Step 6: Final answer
    x = 882,744.97

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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.