Home / 987,290.38-1,480,992.99-277,373.78

Finding the Fourth Proportional to 987,290.38, 1,480,992.99 and 277,373.78

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Solution

The fourth proportional to 987,290.38, 1,480,992.99 and 277,373.78 is: 416,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,290.38 : 1,480,992.99 = 277,373.78 : x
  2. Step 2: Convert to fraction form
    987,290.38/1,480,992.99 = 277,373.78/x
  3. Step 3: Cross multiply
    987,290.38x = 1,480,992.99 × 277,373.78
  4. Step 4: Simplify right side
    987,290.38x = 410,788,623,789.80
  5. Step 5: Solve for x
    x = 410,788,623,789.80/987,290.38
  6. Step 6: Final answer
    x = 416,076.80

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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.