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Finding the Fourth Proportional to 671.98, 926.68 and 436.01

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Solution

The fourth proportional to 671.98, 926.68 and 436.01 is: 601.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.98 : 926.68 = 436.01 : x
  2. Step 2: Convert to fraction form
    671.98/926.68 = 436.01/x
  3. Step 3: Cross multiply
    671.98x = 926.68 × 436.01
  4. Step 4: Simplify right side
    671.98x = 404,041.75
  5. Step 5: Solve for x
    x = 404,041.75/671.98
  6. Step 6: Final answer
    x = 601.27

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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.