Home / 756,067.80-1,134,101.70-719,326.20

Finding the Fourth Proportional to 756,067.80, 1,134,101.70 and 719,326.20

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Solution

The fourth proportional to 756,067.80, 1,134,101.70 and 719,326.20 is: 1,078,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,067.80 : 1,134,101.70 = 719,326.20 : x
  2. Step 2: Convert to fraction form
    756,067.80/1,134,101.70 = 719,326.20/x
  3. Step 3: Cross multiply
    756,067.80x = 1,134,101.70 × 719,326.20
  4. Step 4: Simplify right side
    756,067.80x = 815,789,066,274.54
  5. Step 5: Solve for x
    x = 815,789,066,274.54/756,067.80
  6. Step 6: Final answer
    x = 1,078,989.30

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Double scale
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Similar ratio
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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.