Home / 720,434.82-1,080,681.39-271,108.38

Finding the Fourth Proportional to 720,434.82, 1,080,681.39 and 271,108.38

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Solution

The fourth proportional to 720,434.82, 1,080,681.39 and 271,108.38 is: 406,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,434.82 : 1,080,681.39 = 271,108.38 : x
  2. Step 2: Convert to fraction form
    720,434.82/1,080,681.39 = 271,108.38/x
  3. Step 3: Cross multiply
    720,434.82x = 1,080,681.39 × 271,108.38
  4. Step 4: Simplify right side
    720,434.82x = 292,981,780,939.05
  5. Step 5: Solve for x
    x = 292,981,780,939.05/720,434.82
  6. Step 6: Final answer
    x = 406,673.54

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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.