Home / 486,098.20-729,147.30-276,146.20

Finding the Fourth Proportional to 486,098.20, 729,147.30 and 276,146.20

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Solution

The fourth proportional to 486,098.20, 729,147.30 and 276,146.20 is: 414,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,098.20 : 729,147.30 = 276,146.20 : x
  2. Step 2: Convert to fraction form
    486,098.20/729,147.30 = 276,146.20/x
  3. Step 3: Cross multiply
    486,098.20x = 729,147.30 × 276,146.20
  4. Step 4: Simplify right side
    486,098.20x = 201,351,256,135.26
  5. Step 5: Solve for x
    x = 201,351,256,135.26/486,098.20
  6. Step 6: Final answer
    x = 414,219.30

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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.