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Finding the Fourth Proportional to 697.25, 1,043.12 and 524.33

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Solution

The fourth proportional to 697.25, 1,043.12 and 524.33 is: 784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.25 : 1,043.12 = 524.33 : x
  2. Step 2: Convert to fraction form
    697.25/1,043.12 = 524.33/x
  3. Step 3: Cross multiply
    697.25x = 1,043.12 × 524.33
  4. Step 4: Simplify right side
    697.25x = 546,931.27
  5. Step 5: Solve for x
    x = 546,931.27/697.25
  6. Step 6: Final answer
    x = 784.42

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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.