Home / 1,040,043.37-1,560,143.49-310,508.83

Finding the Fourth Proportional to 1,040,043.37, 1,560,143.49 and 310,508.83

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Solution

The fourth proportional to 1,040,043.37, 1,560,143.49 and 310,508.83 is: 465,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,043.37 : 1,560,143.49 = 310,508.83 : x
  2. Step 2: Convert to fraction form
    1,040,043.37/1,560,143.49 = 310,508.83/x
  3. Step 3: Cross multiply
    1,040,043.37x = 1,560,143.49 × 310,508.83
  4. Step 4: Simplify right side
    1,040,043.37x = 484,438,329,712.02
  5. Step 5: Solve for x
    x = 484,438,329,712.02/1,040,043.37
  6. Step 6: Final answer
    x = 465,786.66

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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.