Home / 787,340.33-1,086,564.23-443,198.47

Finding the Fourth Proportional to 787,340.33, 1,086,564.23 and 443,198.47

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Solution

The fourth proportional to 787,340.33, 1,086,564.23 and 443,198.47 is: 611,633.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,340.33 : 1,086,564.23 = 443,198.47 : x
  2. Step 2: Convert to fraction form
    787,340.33/1,086,564.23 = 443,198.47/x
  3. Step 3: Cross multiply
    787,340.33x = 1,086,564.23 × 443,198.47
  4. Step 4: Simplify right side
    787,340.33x = 481,563,601,022.32
  5. Step 5: Solve for x
    x = 481,563,601,022.32/787,340.33
  6. Step 6: Final answer
    x = 611,633.34

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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.