Home / 787,105.98-1,086,289.92-481,361.22

Finding the Fourth Proportional to 787,105.98, 1,086,289.92 and 481,361.22

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Solution

The fourth proportional to 787,105.98, 1,086,289.92 and 481,361.22 is: 664,329.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,105.98 : 1,086,289.92 = 481,361.22 : x
  2. Step 2: Convert to fraction form
    787,105.98/1,086,289.92 = 481,361.22/x
  3. Step 3: Cross multiply
    787,105.98x = 1,086,289.92 × 481,361.22
  4. Step 4: Simplify right side
    787,105.98x = 522,897,841,164.90
  5. Step 5: Solve for x
    x = 522,897,841,164.90/787,105.98
  6. Step 6: Final answer
    x = 664,329.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.