Home / 1,079,080.40-1,618,620.60-331,029.20

Finding the Fourth Proportional to 1,079,080.40, 1,618,620.60 and 331,029.20

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Solution

The fourth proportional to 1,079,080.40, 1,618,620.60 and 331,029.20 is: 496,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,080.40 : 1,618,620.60 = 331,029.20 : x
  2. Step 2: Convert to fraction form
    1,079,080.40/1,618,620.60 = 331,029.20/x
  3. Step 3: Cross multiply
    1,079,080.40x = 1,618,620.60 × 331,029.20
  4. Step 4: Simplify right side
    1,079,080.40x = 535,810,682,321.52
  5. Step 5: Solve for x
    x = 535,810,682,321.52/1,079,080.40
  6. Step 6: Final answer
    x = 496,543.80

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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.