Home / 741,611.38-1,112,418.88-209,135.20

Finding the Fourth Proportional to 741,611.38, 1,112,418.88 and 209,135.20

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Solution

The fourth proportional to 741,611.38, 1,112,418.88 and 209,135.20 is: 313,703.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,611.38 : 1,112,418.88 = 209,135.20 : x
  2. Step 2: Convert to fraction form
    741,611.38/1,112,418.88 = 209,135.20/x
  3. Step 3: Cross multiply
    741,611.38x = 1,112,418.88 × 209,135.20
  4. Step 4: Simplify right side
    741,611.38x = 232,645,944,952.58
  5. Step 5: Solve for x
    x = 232,645,944,952.58/741,611.38
  6. Step 6: Final answer
    x = 313,703.31

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.