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Finding the Fourth Proportional to 1,326.59, 1,988.31 and 504.07

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Solution

The fourth proportional to 1,326.59, 1,988.31 and 504.07 is: 755.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.59 : 1,988.31 = 504.07 : x
  2. Step 2: Convert to fraction form
    1,326.59/1,988.31 = 504.07/x
  3. Step 3: Cross multiply
    1,326.59x = 1,988.31 × 504.07
  4. Step 4: Simplify right side
    1,326.59x = 1,002,255.53
  5. Step 5: Solve for x
    x = 1,002,255.53/1,326.59
  6. Step 6: Final answer
    x = 755.51

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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.