Home / 1,040,086.20-1,560,129.30-330,169.80

Finding the Fourth Proportional to 1,040,086.20, 1,560,129.30 and 330,169.80

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Solution

The fourth proportional to 1,040,086.20, 1,560,129.30 and 330,169.80 is: 495,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,086.20 : 1,560,129.30 = 330,169.80 : x
  2. Step 2: Convert to fraction form
    1,040,086.20/1,560,129.30 = 330,169.80/x
  3. Step 3: Cross multiply
    1,040,086.20x = 1,560,129.30 × 330,169.80
  4. Step 4: Simplify right side
    1,040,086.20x = 515,107,578,955.14
  5. Step 5: Solve for x
    x = 515,107,578,955.14/1,040,086.20
  6. Step 6: Final answer
    x = 495,254.70

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Double scale
Find fourth proportional to 1,040,087.20, 1,560,130.80 and 330,170.80
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.