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Finding the Fourth Proportional to 697.36, 962.71 and 539.63

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Solution

The fourth proportional to 697.36, 962.71 and 539.63 is: 744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.36 : 962.71 = 539.63 : x
  2. Step 2: Convert to fraction form
    697.36/962.71 = 539.63/x
  3. Step 3: Cross multiply
    697.36x = 962.71 × 539.63
  4. Step 4: Simplify right side
    697.36x = 519,504.50
  5. Step 5: Solve for x
    x = 519,504.50/697.36
  6. Step 6: Final answer
    x = 744.96

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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.