Home / 987,289.38-1,480,991.49-277,372.78

Finding the Fourth Proportional to 987,289.38, 1,480,991.49 and 277,372.78

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Solution

The fourth proportional to 987,289.38, 1,480,991.49 and 277,372.78 is: 416,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,289.38 : 1,480,991.49 = 277,372.78 : x
  2. Step 2: Convert to fraction form
    987,289.38/1,480,991.49 = 277,372.78/x
  3. Step 3: Cross multiply
    987,289.38x = 1,480,991.49 × 277,372.78
  4. Step 4: Simplify right side
    987,289.38x = 410,786,723,035.16
  5. Step 5: Solve for x
    x = 410,786,723,035.16/987,289.38
  6. Step 6: Final answer
    x = 416,075.30

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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.