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Finding the Fourth Proportional to 603.89, 904.88 and 360.28

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Solution

The fourth proportional to 603.89, 904.88 and 360.28 is: 539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.89 : 904.88 = 360.28 : x
  2. Step 2: Convert to fraction form
    603.89/904.88 = 360.28/x
  3. Step 3: Cross multiply
    603.89x = 904.88 × 360.28
  4. Step 4: Simplify right side
    603.89x = 326,010.17
  5. Step 5: Solve for x
    x = 326,010.17/603.89
  6. Step 6: Final answer
    x = 539.85

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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.