Home / 863,393.48-1,294,351.70-331,296.38

Finding the Fourth Proportional to 863,393.48, 1,294,351.70 and 331,296.38

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Solution

The fourth proportional to 863,393.48, 1,294,351.70 and 331,296.38 is: 496,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,393.48 : 1,294,351.70 = 331,296.38 : x
  2. Step 2: Convert to fraction form
    863,393.48/1,294,351.70 = 331,296.38/x
  3. Step 3: Cross multiply
    863,393.48x = 1,294,351.70 × 331,296.38
  4. Step 4: Simplify right side
    863,393.48x = 428,814,024,528.61
  5. Step 5: Solve for x
    x = 428,814,024,528.61/863,393.48
  6. Step 6: Final answer
    x = 496,661.18

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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.