Home / 538,986.15-743,328.50-431,516.97

Finding the Fourth Proportional to 538,986.15, 743,328.50 and 431,516.97

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Solution

The fourth proportional to 538,986.15, 743,328.50 and 431,516.97 is: 595,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,986.15 : 743,328.50 = 431,516.97 : x
  2. Step 2: Convert to fraction form
    538,986.15/743,328.50 = 431,516.97/x
  3. Step 3: Cross multiply
    538,986.15x = 743,328.50 × 431,516.97
  4. Step 4: Simplify right side
    538,986.15x = 320,758,859,877.06
  5. Step 5: Solve for x
    x = 320,758,859,877.06/538,986.15
  6. Step 6: Final answer
    x = 595,115.22

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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.