Home / 863,371.50-1,294,318.68-331,274.40

Finding the Fourth Proportional to 863,371.50, 1,294,318.68 and 331,274.40

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Solution

The fourth proportional to 863,371.50, 1,294,318.68 and 331,274.40 is: 496,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,371.50 : 1,294,318.68 = 331,274.40 : x
  2. Step 2: Convert to fraction form
    863,371.50/1,294,318.68 = 331,274.40/x
  3. Step 3: Cross multiply
    863,371.50x = 1,294,318.68 × 331,274.40
  4. Step 4: Simplify right side
    863,371.50x = 428,774,644,125.79
  5. Step 5: Solve for x
    x = 428,774,644,125.79/863,371.50
  6. Step 6: Final answer
    x = 496,628.21

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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.