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Finding the Fourth Proportional to 381,744.36, 571,730.40 and 368,458.74

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Solution

The fourth proportional to 381,744.36, 571,730.40 and 368,458.74 is: 551,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,744.36 : 571,730.40 = 368,458.74 : x
  2. Step 2: Convert to fraction form
    381,744.36/571,730.40 = 368,458.74/x
  3. Step 3: Cross multiply
    381,744.36x = 571,730.40 × 368,458.74
  4. Step 4: Simplify right side
    381,744.36x = 210,659,062,803.70
  5. Step 5: Solve for x
    x = 210,659,062,803.70/381,744.36
  6. Step 6: Final answer
    x = 551,832.81

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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.