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Finding the Fourth Proportional to 404,264.80, 605,230.80 and 392,600.80

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Solution

The fourth proportional to 404,264.80, 605,230.80 and 392,600.80 is: 587,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,264.80 : 605,230.80 = 392,600.80 : x
  2. Step 2: Convert to fraction form
    404,264.80/605,230.80 = 392,600.80/x
  3. Step 3: Cross multiply
    404,264.80x = 605,230.80 × 392,600.80
  4. Step 4: Simplify right side
    404,264.80x = 237,614,096,264.64
  5. Step 5: Solve for x
    x = 237,614,096,264.64/404,264.80
  6. Step 6: Final answer
    x = 587,768.45

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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.