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Finding the Fourth Proportional to 404,133.60, 605,163.60 and 385,471.20

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Solution

The fourth proportional to 404,133.60, 605,163.60 and 385,471.20 is: 577,217.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,133.60 : 605,163.60 = 385,471.20 : x
  2. Step 2: Convert to fraction form
    404,133.60/605,163.60 = 385,471.20/x
  3. Step 3: Cross multiply
    404,133.60x = 605,163.60 × 385,471.20
  4. Step 4: Simplify right side
    404,133.60x = 233,273,139,088.32
  5. Step 5: Solve for x
    x = 233,273,139,088.32/404,133.60
  6. Step 6: Final answer
    x = 577,217.88

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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.