Home / 1,208,378.25-1,667,574.18-664,517.79

Finding the Fourth Proportional to 1,208,378.25, 1,667,574.18 and 664,517.79

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Solution

The fourth proportional to 1,208,378.25, 1,667,574.18 and 664,517.79 is: 917,041.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,378.25 : 1,667,574.18 = 664,517.79 : x
  2. Step 2: Convert to fraction form
    1,208,378.25/1,667,574.18 = 664,517.79/x
  3. Step 3: Cross multiply
    1,208,378.25x = 1,667,574.18 × 664,517.79
  4. Step 4: Simplify right side
    1,208,378.25x = 1,108,132,708,754.66
  5. Step 5: Solve for x
    x = 1,108,132,708,754.66/1,208,378.25
  6. Step 6: Final answer
    x = 917,041.26

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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.