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Finding the Fourth Proportional to 509,998.96, 764,298.60 and 322,675.12

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Solution

The fourth proportional to 509,998.96, 764,298.60 and 322,675.12 is: 483,569.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,998.96 : 764,298.60 = 322,675.12 : x
  2. Step 2: Convert to fraction form
    509,998.96/764,298.60 = 322,675.12/x
  3. Step 3: Cross multiply
    509,998.96x = 764,298.60 × 322,675.12
  4. Step 4: Simplify right side
    509,998.96x = 246,620,142,470.83
  5. Step 5: Solve for x
    x = 246,620,142,470.83/509,998.96
  6. Step 6: Final answer
    x = 483,569.89

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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.