Home / 863,520.13-1,295,282.63-331,204.33

Finding the Fourth Proportional to 863,520.13, 1,295,282.63 and 331,204.33

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Solution

The fourth proportional to 863,520.13, 1,295,282.63 and 331,204.33 is: 496,807.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,520.13 : 1,295,282.63 = 331,204.33 : x
  2. Step 2: Convert to fraction form
    863,520.13/1,295,282.63 = 331,204.33/x
  3. Step 3: Cross multiply
    863,520.13x = 1,295,282.63 × 331,204.33
  4. Step 4: Simplify right side
    863,520.13x = 429,003,215,629.79
  5. Step 5: Solve for x
    x = 429,003,215,629.79/863,520.13
  6. Step 6: Final answer
    x = 496,807.43

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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.