Home / 1,040,122.30-1,560,183.45-830,170.30

Finding the Fourth Proportional to 1,040,122.30, 1,560,183.45 and 830,170.30

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Solution

The fourth proportional to 1,040,122.30, 1,560,183.45 and 830,170.30 is: 1,245,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,122.30 : 1,560,183.45 = 830,170.30 : x
  2. Step 2: Convert to fraction form
    1,040,122.30/1,560,183.45 = 830,170.30/x
  3. Step 3: Cross multiply
    1,040,122.30x = 1,560,183.45 × 830,170.30
  4. Step 4: Simplify right side
    1,040,122.30x = 1,295,217,962,741.53
  5. Step 5: Solve for x
    x = 1,295,217,962,741.53/1,040,122.30
  6. Step 6: Final answer
    x = 1,245,255.45

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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.