Home / 1,787,540.40-2,682,347.40-665,722.80

Finding the Fourth Proportional to 1,787,540.40, 2,682,347.40 and 665,722.80

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Solution

The fourth proportional to 1,787,540.40, 2,682,347.40 and 665,722.80 is: 998,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,540.40 : 2,682,347.40 = 665,722.80 : x
  2. Step 2: Convert to fraction form
    1,787,540.40/2,682,347.40 = 665,722.80/x
  3. Step 3: Cross multiply
    1,787,540.40x = 2,682,347.40 × 665,722.80
  4. Step 4: Simplify right side
    1,787,540.40x = 1,785,699,821,700.72
  5. Step 5: Solve for x
    x = 1,785,699,821,700.72/1,787,540.40
  6. Step 6: Final answer
    x = 998,970.33

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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.