Home / 1,207,993.20-1,667,041.92-664,132.88

Finding the Fourth Proportional to 1,207,993.20, 1,667,041.92 and 664,132.88

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Solution

The fourth proportional to 1,207,993.20, 1,667,041.92 and 664,132.88 is: 916,509.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,993.20 : 1,667,041.92 = 664,132.88 : x
  2. Step 2: Convert to fraction form
    1,207,993.20/1,667,041.92 = 664,132.88/x
  3. Step 3: Cross multiply
    1,207,993.20x = 1,667,041.92 × 664,132.88
  4. Step 4: Simplify right side
    1,207,993.20x = 1,107,137,351,410.33
  5. Step 5: Solve for x
    x = 1,107,137,351,410.33/1,207,993.20
  6. Step 6: Final answer
    x = 916,509.59

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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.