Home / 1,208,137.28-1,667,272.28-664,314.48

Finding the Fourth Proportional to 1,208,137.28, 1,667,272.28 and 664,314.48

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Solution

The fourth proportional to 1,208,137.28, 1,667,272.28 and 664,314.48 is: 916,777.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,137.28 : 1,667,272.28 = 664,314.48 : x
  2. Step 2: Convert to fraction form
    1,208,137.28/1,667,272.28 = 664,314.48/x
  3. Step 3: Cross multiply
    1,208,137.28x = 1,667,272.28 × 664,314.48
  4. Step 4: Simplify right side
    1,208,137.28x = 1,107,593,114,385.04
  5. Step 5: Solve for x
    x = 1,107,593,114,385.04/1,208,137.28
  6. Step 6: Final answer
    x = 916,777.54

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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.