Home / 791,999.40-1,187,561.70-259,246.20

Finding the Fourth Proportional to 791,999.40, 1,187,561.70 and 259,246.20

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Solution

The fourth proportional to 791,999.40, 1,187,561.70 and 259,246.20 is: 388,726.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,999.40 : 1,187,561.70 = 259,246.20 : x
  2. Step 2: Convert to fraction form
    791,999.40/1,187,561.70 = 259,246.20/x
  3. Step 3: Cross multiply
    791,999.40x = 1,187,561.70 × 259,246.20
  4. Step 4: Simplify right side
    791,999.40x = 307,870,857,990.54
  5. Step 5: Solve for x
    x = 307,870,857,990.54/791,999.40
  6. Step 6: Final answer
    x = 388,726.13

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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.