Home / 987,571.72-1,481,124.30-454,760.20

Finding the Fourth Proportional to 987,571.72, 1,481,124.30 and 454,760.20

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Solution

The fourth proportional to 987,571.72, 1,481,124.30 and 454,760.20 is: 682,032.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,571.72 : 1,481,124.30 = 454,760.20 : x
  2. Step 2: Convert to fraction form
    987,571.72/1,481,124.30 = 454,760.20/x
  3. Step 3: Cross multiply
    987,571.72x = 1,481,124.30 × 454,760.20
  4. Step 4: Simplify right side
    987,571.72x = 673,556,382,892.86
  5. Step 5: Solve for x
    x = 673,556,382,892.86/987,571.72
  6. Step 6: Final answer
    x = 682,032.88

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1.5x scale

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.