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Finding the Fourth Proportional to 509,760.36, 764,591.07 and 154,777.46

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Solution

The fourth proportional to 509,760.36, 764,591.07 and 154,777.46 is: 232,151.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,760.36 : 764,591.07 = 154,777.46 : x
  2. Step 2: Convert to fraction form
    509,760.36/764,591.07 = 154,777.46/x
  3. Step 3: Cross multiply
    509,760.36x = 764,591.07 × 154,777.46
  4. Step 4: Simplify right side
    509,760.36x = 118,341,463,753.28
  5. Step 5: Solve for x
    x = 118,341,463,753.28/509,760.36
  6. Step 6: Final answer
    x = 232,151.17

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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.