Home / 1,208,405.18-1,667,565.89-664,540.97

Finding the Fourth Proportional to 1,208,405.18, 1,667,565.89 and 664,540.97

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Solution

The fourth proportional to 1,208,405.18, 1,667,565.89 and 664,540.97 is: 917,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,405.18 : 1,667,565.89 = 664,540.97 : x
  2. Step 2: Convert to fraction form
    1,208,405.18/1,667,565.89 = 664,540.97/x
  3. Step 3: Cross multiply
    1,208,405.18x = 1,667,565.89 × 664,540.97
  4. Step 4: Simplify right side
    1,208,405.18x = 1,108,165,846,550.71
  5. Step 5: Solve for x
    x = 1,108,165,846,550.71/1,208,405.18
  6. Step 6: Final answer
    x = 917,048.25

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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.