Home / 436,480.47-654,748.38-136,972.87

Finding the Fourth Proportional to 436,480.47, 654,748.38 and 136,972.87

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Solution

The fourth proportional to 436,480.47, 654,748.38 and 136,972.87 is: 205,467.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,480.47 : 654,748.38 = 136,972.87 : x
  2. Step 2: Convert to fraction form
    436,480.47/654,748.38 = 136,972.87/x
  3. Step 3: Cross multiply
    436,480.47x = 654,748.38 × 136,972.87
  4. Step 4: Simplify right side
    436,480.47x = 89,682,764,736.45
  5. Step 5: Solve for x
    x = 89,682,764,736.45/436,480.47
  6. Step 6: Final answer
    x = 205,467.99

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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.