Home / 481,372.29-663,890.19-309,318.27

Finding the Fourth Proportional to 481,372.29, 663,890.19 and 309,318.27

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Solution

The fourth proportional to 481,372.29, 663,890.19 and 309,318.27 is: 426,599.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,372.29 : 663,890.19 = 309,318.27 : x
  2. Step 2: Convert to fraction form
    481,372.29/663,890.19 = 309,318.27/x
  3. Step 3: Cross multiply
    481,372.29x = 663,890.19 × 309,318.27
  4. Step 4: Simplify right side
    481,372.29x = 205,353,365,040.77
  5. Step 5: Solve for x
    x = 205,353,365,040.77/481,372.29
  6. Step 6: Final answer
    x = 426,599.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.