Home / 741,352.80-1,112,029.20-442,171.20

Finding the Fourth Proportional to 741,352.80, 1,112,029.20 and 442,171.20

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Solution

The fourth proportional to 741,352.80, 1,112,029.20 and 442,171.20 is: 663,256.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,352.80 : 1,112,029.20 = 442,171.20 : x
  2. Step 2: Convert to fraction form
    741,352.80/1,112,029.20 = 442,171.20/x
  3. Step 3: Cross multiply
    741,352.80x = 1,112,029.20 × 442,171.20
  4. Step 4: Simplify right side
    741,352.80x = 491,707,285,799.04
  5. Step 5: Solve for x
    x = 491,707,285,799.04/741,352.80
  6. Step 6: Final answer
    x = 663,256.80

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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.