Home / 791,344.20-1,187,016.30-258,736.80

Finding the Fourth Proportional to 791,344.20, 1,187,016.30 and 258,736.80

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Solution

The fourth proportional to 791,344.20, 1,187,016.30 and 258,736.80 is: 388,105.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,344.20 : 1,187,016.30 = 258,736.80 : x
  2. Step 2: Convert to fraction form
    791,344.20/1,187,016.30 = 258,736.80/x
  3. Step 3: Cross multiply
    791,344.20x = 1,187,016.30 × 258,736.80
  4. Step 4: Simplify right side
    791,344.20x = 307,124,799,009.84
  5. Step 5: Solve for x
    x = 307,124,799,009.84/791,344.20
  6. Step 6: Final answer
    x = 388,105.20

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1.5x scale

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.