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Finding the Fourth Proportional to 603.87, 903.75 and 372.90

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Solution

The fourth proportional to 603.87, 903.75 and 372.90 is: 558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.87 : 903.75 = 372.90 : x
  2. Step 2: Convert to fraction form
    603.87/903.75 = 372.90/x
  3. Step 3: Cross multiply
    603.87x = 903.75 × 372.90
  4. Step 4: Simplify right side
    603.87x = 337,008.38
  5. Step 5: Solve for x
    x = 337,008.38/603.87
  6. Step 6: Final answer
    x = 558.08

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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.