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Finding the Fourth Proportional to 1,015.30, 1,525.73 and 604.53

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Solution

The fourth proportional to 1,015.30, 1,525.73 and 604.53 is: 908.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015.30 : 1,525.73 = 604.53 : x
  2. Step 2: Convert to fraction form
    1,015.30/1,525.73 = 604.53/x
  3. Step 3: Cross multiply
    1,015.30x = 1,525.73 × 604.53
  4. Step 4: Simplify right side
    1,015.30x = 922,349.56
  5. Step 5: Solve for x
    x = 922,349.56/1,015.30
  6. Step 6: Final answer
    x = 908.45

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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.