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Finding the Fourth Proportional to 1,008.36, 1,515.39 and 597.57

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Solution

The fourth proportional to 1,008.36, 1,515.39 and 597.57 is: 898.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008.36 : 1,515.39 = 597.57 : x
  2. Step 2: Convert to fraction form
    1,008.36/1,515.39 = 597.57/x
  3. Step 3: Cross multiply
    1,008.36x = 1,515.39 × 597.57
  4. Step 4: Simplify right side
    1,008.36x = 905,551.60
  5. Step 5: Solve for x
    x = 905,551.60/1,008.36
  6. Step 6: Final answer
    x = 898.04

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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.