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Finding the Fourth Proportional to 698.12, 962.97 and 501.89

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Solution

The fourth proportional to 698.12, 962.97 and 501.89 is: 692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.12 : 962.97 = 501.89 : x
  2. Step 2: Convert to fraction form
    698.12/962.97 = 501.89/x
  3. Step 3: Cross multiply
    698.12x = 962.97 × 501.89
  4. Step 4: Simplify right side
    698.12x = 483,305.01
  5. Step 5: Solve for x
    x = 483,305.01/698.12
  6. Step 6: Final answer
    x = 692.30

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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.