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Finding the Fourth Proportional to 600.13, 900.30 and 485.32

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Solution

The fourth proportional to 600.13, 900.30 and 485.32 is: 728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.13 : 900.30 = 485.32 : x
  2. Step 2: Convert to fraction form
    600.13/900.30 = 485.32/x
  3. Step 3: Cross multiply
    600.13x = 900.30 × 485.32
  4. Step 4: Simplify right side
    600.13x = 436,933.60
  5. Step 5: Solve for x
    x = 436,933.60/600.13
  6. Step 6: Final answer
    x = 728.06

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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.