Home / 791,217.32-1,187,012.68-258,736.28

Finding the Fourth Proportional to 791,217.32, 1,187,012.68 and 258,736.28

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Solution

The fourth proportional to 791,217.32, 1,187,012.68 and 258,736.28 is: 388,165.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,217.32 : 1,187,012.68 = 258,736.28 : x
  2. Step 2: Convert to fraction form
    791,217.32/1,187,012.68 = 258,736.28/x
  3. Step 3: Cross multiply
    791,217.32x = 1,187,012.68 × 258,736.28
  4. Step 4: Simplify right side
    791,217.32x = 307,123,245,136.03
  5. Step 5: Solve for x
    x = 307,123,245,136.03/791,217.32
  6. Step 6: Final answer
    x = 388,165.47

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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.