Home / 746,705.20-1,120,057.80-185,739.70

Finding the Fourth Proportional to 746,705.20, 1,120,057.80 and 185,739.70

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Solution

The fourth proportional to 746,705.20, 1,120,057.80 and 185,739.70 is: 278,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,705.20 : 1,120,057.80 = 185,739.70 : x
  2. Step 2: Convert to fraction form
    746,705.20/1,120,057.80 = 185,739.70/x
  3. Step 3: Cross multiply
    746,705.20x = 1,120,057.80 × 185,739.70
  4. Step 4: Simplify right side
    746,705.20x = 208,039,199,754.66
  5. Step 5: Solve for x
    x = 208,039,199,754.66/746,705.20
  6. Step 6: Final answer
    x = 278,609.55

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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.