Home / 806,630.72-1,209,937.86-207,589.55

Finding the Fourth Proportional to 806,630.72, 1,209,937.86 and 207,589.55

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Solution

The fourth proportional to 806,630.72, 1,209,937.86 and 207,589.55 is: 311,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,630.72 : 1,209,937.86 = 207,589.55 : x
  2. Step 2: Convert to fraction form
    806,630.72/1,209,937.86 = 207,589.55/x
  3. Step 3: Cross multiply
    806,630.72x = 1,209,937.86 × 207,589.55
  4. Step 4: Simplify right side
    806,630.72x = 251,170,458,910.21
  5. Step 5: Solve for x
    x = 251,170,458,910.21/806,630.72
  6. Step 6: Final answer
    x = 311,382.21

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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.