Home / 1,226,645.72-1,692,733.40-682,767.55

Finding the Fourth Proportional to 1,226,645.72, 1,692,733.40 and 682,767.55

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Solution

The fourth proportional to 1,226,645.72, 1,692,733.40 and 682,767.55 is: 942,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,645.72 : 1,692,733.40 = 682,767.55 : x
  2. Step 2: Convert to fraction form
    1,226,645.72/1,692,733.40 = 682,767.55/x
  3. Step 3: Cross multiply
    1,226,645.72x = 1,692,733.40 × 682,767.55
  4. Step 4: Simplify right side
    1,226,645.72x = 1,155,743,424,443.67
  5. Step 5: Solve for x
    x = 1,155,743,424,443.67/1,226,645.72
  6. Step 6: Final answer
    x = 942,198.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.