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Finding the Fourth Proportional to 692.99, 953.78 and 552.66

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Solution

The fourth proportional to 692.99, 953.78 and 552.66 is: 760.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.99 : 953.78 = 552.66 : x
  2. Step 2: Convert to fraction form
    692.99/953.78 = 552.66/x
  3. Step 3: Cross multiply
    692.99x = 953.78 × 552.66
  4. Step 4: Simplify right side
    692.99x = 527,109.71
  5. Step 5: Solve for x
    x = 527,109.71/692.99
  6. Step 6: Final answer
    x = 760.63

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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.