Home / 509,412.69-764,450.73-193,872.33

Finding the Fourth Proportional to 509,412.69, 764,450.73 and 193,872.33

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Solution

The fourth proportional to 509,412.69, 764,450.73 and 193,872.33 is: 290,934.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,412.69 : 764,450.73 = 193,872.33 : x
  2. Step 2: Convert to fraction form
    509,412.69/764,450.73 = 193,872.33/x
  3. Step 3: Cross multiply
    509,412.69x = 764,450.73 × 193,872.33
  4. Step 4: Simplify right side
    509,412.69x = 148,205,844,195.30
  5. Step 5: Solve for x
    x = 148,205,844,195.30/509,412.69
  6. Step 6: Final answer
    x = 290,934.73

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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.