Home / 1,221,227.35-1,685,495.57-677,538.29

Finding the Fourth Proportional to 1,221,227.35, 1,685,495.57 and 677,538.29

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Solution

The fourth proportional to 1,221,227.35, 1,685,495.57 and 677,538.29 is: 935,114.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,227.35 : 1,685,495.57 = 677,538.29 : x
  2. Step 2: Convert to fraction form
    1,221,227.35/1,685,495.57 = 677,538.29/x
  3. Step 3: Cross multiply
    1,221,227.35x = 1,685,495.57 × 677,538.29
  4. Step 4: Simplify right side
    1,221,227.35x = 1,141,987,787,126.42
  5. Step 5: Solve for x
    x = 1,141,987,787,126.42/1,221,227.35
  6. Step 6: Final answer
    x = 935,114.82

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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.