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Finding the Fourth Proportional to 600.54, 901.19 and 405.91

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Solution

The fourth proportional to 600.54, 901.19 and 405.91 is: 609.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.54 : 901.19 = 405.91 : x
  2. Step 2: Convert to fraction form
    600.54/901.19 = 405.91/x
  3. Step 3: Cross multiply
    600.54x = 901.19 × 405.91
  4. Step 4: Simplify right side
    600.54x = 365,802.03
  5. Step 5: Solve for x
    x = 365,802.03/600.54
  6. Step 6: Final answer
    x = 609.12

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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.