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Finding the Fourth Proportional to 464.28, 692.76 and 453.78

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Solution

The fourth proportional to 464.28, 692.76 and 453.78 is: 677.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.28 : 692.76 = 453.78 : x
  2. Step 2: Convert to fraction form
    464.28/692.76 = 453.78/x
  3. Step 3: Cross multiply
    464.28x = 692.76 × 453.78
  4. Step 4: Simplify right side
    464.28x = 314,360.63
  5. Step 5: Solve for x
    x = 314,360.63/464.28
  6. Step 6: Final answer
    x = 677.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.