Home / 720,434.72-1,080,571.44-276,891.68

Finding the Fourth Proportional to 720,434.72, 1,080,571.44 and 276,891.68

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Solution

The fourth proportional to 720,434.72, 1,080,571.44 and 276,891.68 is: 415,306.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,434.72 : 1,080,571.44 = 276,891.68 : x
  2. Step 2: Convert to fraction form
    720,434.72/1,080,571.44 = 276,891.68/x
  3. Step 3: Cross multiply
    720,434.72x = 1,080,571.44 × 276,891.68
  4. Step 4: Simplify right side
    720,434.72x = 299,201,241,381.62
  5. Step 5: Solve for x
    x = 299,201,241,381.62/720,434.72
  6. Step 6: Final answer
    x = 415,306.53

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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.