Home / 1,221,040.46-1,685,139.36-677,351.41

Finding the Fourth Proportional to 1,221,040.46, 1,685,139.36 and 677,351.41

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Solution

The fourth proportional to 1,221,040.46, 1,685,139.36 and 677,351.41 is: 934,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,040.46 : 1,685,139.36 = 677,351.41 : x
  2. Step 2: Convert to fraction form
    1,221,040.46/1,685,139.36 = 677,351.41/x
  3. Step 3: Cross multiply
    1,221,040.46x = 1,685,139.36 × 677,351.41
  4. Step 4: Simplify right side
    1,221,040.46x = 1,141,431,514,789.58
  5. Step 5: Solve for x
    x = 1,141,431,514,789.58/1,221,040.46
  6. Step 6: Final answer
    x = 934,802.37

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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.