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Finding the Fourth Proportional to 449,199.61, 620,175.22 and 285,948.23

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Solution

The fourth proportional to 449,199.61, 620,175.22 and 285,948.23 is: 394,786.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,199.61 : 620,175.22 = 285,948.23 : x
  2. Step 2: Convert to fraction form
    449,199.61/620,175.22 = 285,948.23/x
  3. Step 3: Cross multiply
    449,199.61x = 620,175.22 × 285,948.23
  4. Step 4: Simplify right side
    449,199.61x = 177,338,002,633.11
  5. Step 5: Solve for x
    x = 177,338,002,633.11/449,199.61
  6. Step 6: Final answer
    x = 394,786.64

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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.