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Finding the Fourth Proportional to 479,494.66, 719,563.02 and 199,012.18

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Solution

The fourth proportional to 479,494.66, 719,563.02 and 199,012.18 is: 298,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,494.66 : 719,563.02 = 199,012.18 : x
  2. Step 2: Convert to fraction form
    479,494.66/719,563.02 = 199,012.18/x
  3. Step 3: Cross multiply
    479,494.66x = 719,563.02 × 199,012.18
  4. Step 4: Simplify right side
    479,494.66x = 143,201,805,257.58
  5. Step 5: Solve for x
    x = 143,201,805,257.58/479,494.66
  6. Step 6: Final answer
    x = 298,651.51

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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.