Home / 839,390.43-1,259,331.77-270,760.11

Finding the Fourth Proportional to 839,390.43, 1,259,331.77 and 270,760.11

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Solution

The fourth proportional to 839,390.43, 1,259,331.77 and 270,760.11 is: 406,219.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,390.43 : 1,259,331.77 = 270,760.11 : x
  2. Step 2: Convert to fraction form
    839,390.43/1,259,331.77 = 270,760.11/x
  3. Step 3: Cross multiply
    839,390.43x = 1,259,331.77 × 270,760.11
  4. Step 4: Simplify right side
    839,390.43x = 340,976,807,217.89
  5. Step 5: Solve for x
    x = 340,976,807,217.89/839,390.43
  6. Step 6: Final answer
    x = 406,219.56

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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.