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Finding the Fourth Proportional to 404,266.32, 605,818.17 and 278,049.08

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Solution

The fourth proportional to 404,266.32, 605,818.17 and 278,049.08 is: 416,673.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,266.32 : 605,818.17 = 278,049.08 : x
  2. Step 2: Convert to fraction form
    404,266.32/605,818.17 = 278,049.08/x
  3. Step 3: Cross multiply
    404,266.32x = 605,818.17 × 278,049.08
  4. Step 4: Simplify right side
    404,266.32x = 168,447,186,330.33
  5. Step 5: Solve for x
    x = 168,447,186,330.33/404,266.32
  6. Step 6: Final answer
    x = 416,673.81

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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.