Home / 1,206,288.78-1,664,563.95-722,764.14

Finding the Fourth Proportional to 1,206,288.78, 1,664,563.95 and 722,764.14

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Solution

The fourth proportional to 1,206,288.78, 1,664,563.95 and 722,764.14 is: 997,345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,288.78 : 1,664,563.95 = 722,764.14 : x
  2. Step 2: Convert to fraction form
    1,206,288.78/1,664,563.95 = 722,764.14/x
  3. Step 3: Cross multiply
    1,206,288.78x = 1,664,563.95 × 722,764.14
  4. Step 4: Simplify right side
    1,206,288.78x = 1,203,087,131,796.75
  5. Step 5: Solve for x
    x = 1,203,087,131,796.75/1,206,288.78
  6. Step 6: Final answer
    x = 997,345.87

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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.