Home / 1,221,081.30-1,685,195.73-677,392.29

Finding the Fourth Proportional to 1,221,081.30, 1,685,195.73 and 677,392.29

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Solution

The fourth proportional to 1,221,081.30, 1,685,195.73 and 677,392.29 is: 934,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,081.30 : 1,685,195.73 = 677,392.29 : x
  2. Step 2: Convert to fraction form
    1,221,081.30/1,685,195.73 = 677,392.29/x
  3. Step 3: Cross multiply
    1,221,081.30x = 1,685,195.73 × 677,392.29
  4. Step 4: Simplify right side
    1,221,081.30x = 1,141,538,594,642.92
  5. Step 5: Solve for x
    x = 1,141,538,594,642.92/1,221,081.30
  6. Step 6: Final answer
    x = 934,858.80

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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.