Home / 1,221,229.41-1,685,498.40-677,540.36

Finding the Fourth Proportional to 1,221,229.41, 1,685,498.40 and 677,540.36

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Solution

The fourth proportional to 1,221,229.41, 1,685,498.40 and 677,540.36 is: 935,117.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,229.41 : 1,685,498.40 = 677,540.36 : x
  2. Step 2: Convert to fraction form
    1,221,229.41/1,685,498.40 = 677,540.36/x
  3. Step 3: Cross multiply
    1,221,229.41x = 1,685,498.40 × 677,540.36
  4. Step 4: Simplify right side
    1,221,229.41x = 1,141,993,184,287.93
  5. Step 5: Solve for x
    x = 1,141,993,184,287.93/1,221,229.41
  6. Step 6: Final answer
    x = 935,117.66

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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.