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Finding the Fourth Proportional to 808,263, 1,115,449.92 and 445,763.97

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Solution

The fourth proportional to 808,263, 1,115,449.92 and 445,763.97 is: 615,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,263 : 1,115,449.92 = 445,763.97 : x
  2. Step 2: Convert to fraction form
    808,263/1,115,449.92 = 445,763.97/x
  3. Step 3: Cross multiply
    808,263x = 1,115,449.92 × 445,763.97
  4. Step 4: Simplify right side
    808,263x = 497,227,384,675.38
  5. Step 5: Solve for x
    x = 497,227,384,675.38/808,263
  6. Step 6: Final answer
    x = 615,180.19

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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.