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Finding the Fourth Proportional to 904.46, 1,249.04 and 625.41

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Solution

The fourth proportional to 904.46, 1,249.04 and 625.41 is: 863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.46 : 1,249.04 = 625.41 : x
  2. Step 2: Convert to fraction form
    904.46/1,249.04 = 625.41/x
  3. Step 3: Cross multiply
    904.46x = 1,249.04 × 625.41
  4. Step 4: Simplify right side
    904.46x = 781,158.98
  5. Step 5: Solve for x
    x = 781,158.98/904.46
  6. Step 6: Final answer
    x = 863.68

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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.