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Finding the Fourth Proportional to 601.79, 901.48 and 551.03

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Solution

The fourth proportional to 601.79, 901.48 and 551.03 is: 825.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.79 : 901.48 = 551.03 : x
  2. Step 2: Convert to fraction form
    601.79/901.48 = 551.03/x
  3. Step 3: Cross multiply
    601.79x = 901.48 × 551.03
  4. Step 4: Simplify right side
    601.79x = 496,742.52
  5. Step 5: Solve for x
    x = 496,742.52/601.79
  6. Step 6: Final answer
    x = 825.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.