Home / 986,016.48-1,479,246.28-312,138.20

Finding the Fourth Proportional to 986,016.48, 1,479,246.28 and 312,138.20

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Solution

The fourth proportional to 986,016.48, 1,479,246.28 and 312,138.20 is: 468,277.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,016.48 : 1,479,246.28 = 312,138.20 : x
  2. Step 2: Convert to fraction form
    986,016.48/1,479,246.28 = 312,138.20/x
  3. Step 3: Cross multiply
    986,016.48x = 1,479,246.28 × 312,138.20
  4. Step 4: Simplify right side
    986,016.48x = 461,729,271,195.90
  5. Step 5: Solve for x
    x = 461,729,271,195.90/986,016.48
  6. Step 6: Final answer
    x = 468,277.44

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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.