Home / 746,385.20-1,120,015.20-273,118.40

Finding the Fourth Proportional to 746,385.20, 1,120,015.20 and 273,118.40

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Solution

The fourth proportional to 746,385.20, 1,120,015.20 and 273,118.40 is: 409,837.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,385.20 : 1,120,015.20 = 273,118.40 : x
  2. Step 2: Convert to fraction form
    746,385.20/1,120,015.20 = 273,118.40/x
  3. Step 3: Cross multiply
    746,385.20x = 1,120,015.20 × 273,118.40
  4. Step 4: Simplify right side
    746,385.20x = 305,896,759,399.68
  5. Step 5: Solve for x
    x = 305,896,759,399.68/746,385.20
  6. Step 6: Final answer
    x = 409,837.65

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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.