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Finding the Fourth Proportional to 712.50, 1,067.07 and 597.68

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Solution

The fourth proportional to 712.50, 1,067.07 and 597.68 is: 895.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    712.50 : 1,067.07 = 597.68 : x
  2. Step 2: Convert to fraction form
    712.50/1,067.07 = 597.68/x
  3. Step 3: Cross multiply
    712.50x = 1,067.07 × 597.68
  4. Step 4: Simplify right side
    712.50x = 637,767.31
  5. Step 5: Solve for x
    x = 637,767.31/712.50
  6. Step 6: Final answer
    x = 895.12

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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.