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Finding the Fourth Proportional to 803,449.41, 1,205,181 and 204,411.21

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Solution

The fourth proportional to 803,449.41, 1,205,181 and 204,411.21 is: 306,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,449.41 : 1,205,181 = 204,411.21 : x
  2. Step 2: Convert to fraction form
    803,449.41/1,205,181 = 204,411.21/x
  3. Step 3: Cross multiply
    803,449.41x = 1,205,181 × 204,411.21
  4. Step 4: Simplify right side
    803,449.41x = 246,352,506,479.01
  5. Step 5: Solve for x
    x = 246,352,506,479.01/803,449.41
  6. Step 6: Final answer
    x = 306,618.57

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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.