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Finding the Fourth Proportional to 509,774.57, 764,612.45 and 154,791.71

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Solution

The fourth proportional to 509,774.57, 764,612.45 and 154,791.71 is: 232,172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,774.57 : 764,612.45 = 154,791.71 : x
  2. Step 2: Convert to fraction form
    509,774.57/764,612.45 = 154,791.71/x
  3. Step 3: Cross multiply
    509,774.57x = 764,612.45 × 154,791.71
  4. Step 4: Simplify right side
    509,774.57x = 118,355,667,848.83
  5. Step 5: Solve for x
    x = 118,355,667,848.83/509,774.57
  6. Step 6: Final answer
    x = 232,172.56

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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.