Home / 481,530.38-721,667.82-268,289.67

Finding the Fourth Proportional to 481,530.38, 721,667.82 and 268,289.67

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Solution

The fourth proportional to 481,530.38, 721,667.82 and 268,289.67 is: 402,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,530.38 : 721,667.82 = 268,289.67 : x
  2. Step 2: Convert to fraction form
    481,530.38/721,667.82 = 268,289.67/x
  3. Step 3: Cross multiply
    481,530.38x = 721,667.82 × 268,289.67
  4. Step 4: Simplify right side
    481,530.38x = 193,616,021,277.42
  5. Step 5: Solve for x
    x = 193,616,021,277.42/481,530.38
  6. Step 6: Final answer
    x = 402,084.75

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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.