Home / 839,381.27-1,259,317.08-270,749.78

Finding the Fourth Proportional to 839,381.27, 1,259,317.08 and 270,749.78

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Solution

The fourth proportional to 839,381.27, 1,259,317.08 and 270,749.78 is: 406,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,381.27 : 1,259,317.08 = 270,749.78 : x
  2. Step 2: Convert to fraction form
    839,381.27/1,259,317.08 = 270,749.78/x
  3. Step 3: Cross multiply
    839,381.27x = 1,259,317.08 × 270,749.78
  4. Step 4: Simplify right side
    839,381.27x = 340,959,816,063.66
  5. Step 5: Solve for x
    x = 340,959,816,063.66/839,381.27
  6. Step 6: Final answer
    x = 406,203.75

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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.