Home / 864,487.38-1,296,899.01-331,969.26

Finding the Fourth Proportional to 864,487.38, 1,296,899.01 and 331,969.26

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Solution

The fourth proportional to 864,487.38, 1,296,899.01 and 331,969.26 is: 498,018.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,487.38 : 1,296,899.01 = 331,969.26 : x
  2. Step 2: Convert to fraction form
    864,487.38/1,296,899.01 = 331,969.26/x
  3. Step 3: Cross multiply
    864,487.38x = 1,296,899.01 × 331,969.26
  4. Step 4: Simplify right side
    864,487.38x = 430,530,604,644.43
  5. Step 5: Solve for x
    x = 430,530,604,644.43/864,487.38
  6. Step 6: Final answer
    x = 498,018.38

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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.