Home / 987,291.38-1,480,994.49-277,374.78

Finding the Fourth Proportional to 987,291.38, 1,480,994.49 and 277,374.78

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Solution

The fourth proportional to 987,291.38, 1,480,994.49 and 277,374.78 is: 416,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,291.38 : 1,480,994.49 = 277,374.78 : x
  2. Step 2: Convert to fraction form
    987,291.38/1,480,994.49 = 277,374.78/x
  3. Step 3: Cross multiply
    987,291.38x = 1,480,994.49 × 277,374.78
  4. Step 4: Simplify right side
    987,291.38x = 410,790,520,844.96
  5. Step 5: Solve for x
    x = 410,790,520,844.96/987,291.38
  6. Step 6: Final answer
    x = 416,078.30

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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.