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Finding the Fourth Proportional to 404,258.40, 605,998.80 and 314,251.20

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Solution

The fourth proportional to 404,258.40, 605,998.80 and 314,251.20 is: 471,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,258.40 : 605,998.80 = 314,251.20 : x
  2. Step 2: Convert to fraction form
    404,258.40/605,998.80 = 314,251.20/x
  3. Step 3: Cross multiply
    404,258.40x = 605,998.80 × 314,251.20
  4. Step 4: Simplify right side
    404,258.40x = 190,435,850,098.56
  5. Step 5: Solve for x
    x = 190,435,850,098.56/404,258.40
  6. Step 6: Final answer
    x = 471,074.57

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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.