Home / 1,211,443.20-1,817,251.20-369,993.60

Finding the Fourth Proportional to 1,211,443.20, 1,817,251.20 and 369,993.60

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Solution

The fourth proportional to 1,211,443.20, 1,817,251.20 and 369,993.60 is: 555,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,443.20 : 1,817,251.20 = 369,993.60 : x
  2. Step 2: Convert to fraction form
    1,211,443.20/1,817,251.20 = 369,993.60/x
  3. Step 3: Cross multiply
    1,211,443.20x = 1,817,251.20 × 369,993.60
  4. Step 4: Simplify right side
    1,211,443.20x = 672,371,313,592.32
  5. Step 5: Solve for x
    x = 672,371,313,592.32/1,211,443.20
  6. Step 6: Final answer
    x = 555,016.79

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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.