Home / 986,936.28-1,480,304.79-669,128.73

Finding the Fourth Proportional to 986,936.28, 1,480,304.79 and 669,128.73

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Solution

The fourth proportional to 986,936.28, 1,480,304.79 and 669,128.73 is: 1,003,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,936.28 : 1,480,304.79 = 669,128.73 : x
  2. Step 2: Convert to fraction form
    986,936.28/1,480,304.79 = 669,128.73/x
  3. Step 3: Cross multiply
    986,936.28x = 1,480,304.79 × 669,128.73
  4. Step 4: Simplify right side
    986,936.28x = 990,514,464,145.62
  5. Step 5: Solve for x
    x = 990,514,464,145.62/986,936.28
  6. Step 6: Final answer
    x = 1,003,625.55

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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.