Home / 1,221,508.22-1,685,683.31-677,644.02

Finding the Fourth Proportional to 1,221,508.22, 1,685,683.31 and 677,644.02

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Solution

The fourth proportional to 1,221,508.22, 1,685,683.31 and 677,644.02 is: 935,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,508.22 : 1,685,683.31 = 677,644.02 : x
  2. Step 2: Convert to fraction form
    1,221,508.22/1,685,683.31 = 677,644.02/x
  3. Step 3: Cross multiply
    1,221,508.22x = 1,685,683.31 × 677,644.02
  4. Step 4: Simplify right side
    1,221,508.22x = 1,142,293,211,247.09
  5. Step 5: Solve for x
    x = 1,142,293,211,247.09/1,221,508.22
  6. Step 6: Final answer
    x = 935,149.84

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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.