Home / 758,736.72-1,138,078.80-190,122.78

Finding the Fourth Proportional to 758,736.72, 1,138,078.80 and 190,122.78

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Solution

The fourth proportional to 758,736.72, 1,138,078.80 and 190,122.78 is: 285,177.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,736.72 : 1,138,078.80 = 190,122.78 : x
  2. Step 2: Convert to fraction form
    758,736.72/1,138,078.80 = 190,122.78/x
  3. Step 3: Cross multiply
    758,736.72x = 1,138,078.80 × 190,122.78
  4. Step 4: Simplify right side
    758,736.72x = 216,374,705,315.06
  5. Step 5: Solve for x
    x = 216,374,705,315.06/758,736.72
  6. Step 6: Final answer
    x = 285,177.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.