Home / 785,427.62-1,178,108.52-252,936.86

Finding the Fourth Proportional to 785,427.62, 1,178,108.52 and 252,936.86

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Solution

The fourth proportional to 785,427.62, 1,178,108.52 and 252,936.86 is: 379,394.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,427.62 : 1,178,108.52 = 252,936.86 : x
  2. Step 2: Convert to fraction form
    785,427.62/1,178,108.52 = 252,936.86/x
  3. Step 3: Cross multiply
    785,427.62x = 1,178,108.52 × 252,936.86
  4. Step 4: Simplify right side
    785,427.62x = 297,987,069,788.05
  5. Step 5: Solve for x
    x = 297,987,069,788.05/785,427.62
  6. Step 6: Final answer
    x = 379,394.69

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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.