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Finding the Fourth Proportional to 897.19, 1,238.15 and 504.25

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Solution

The fourth proportional to 897.19, 1,238.15 and 504.25 is: 695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    897.19 : 1,238.15 = 504.25 : x
  2. Step 2: Convert to fraction form
    897.19/1,238.15 = 504.25/x
  3. Step 3: Cross multiply
    897.19x = 1,238.15 × 504.25
  4. Step 4: Simplify right side
    897.19x = 624,328.43
  5. Step 5: Solve for x
    x = 624,328.43/897.19
  6. Step 6: Final answer
    x = 695.87

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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.