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Finding the Fourth Proportional to 625.15, 931.28 and 606.03

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Solution

The fourth proportional to 625.15, 931.28 and 606.03 is: 902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.15 : 931.28 = 606.03 : x
  2. Step 2: Convert to fraction form
    625.15/931.28 = 606.03/x
  3. Step 3: Cross multiply
    625.15x = 931.28 × 606.03
  4. Step 4: Simplify right side
    625.15x = 564,383.62
  5. Step 5: Solve for x
    x = 564,383.62/625.15
  6. Step 6: Final answer
    x = 902.80

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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.