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Finding the Fourth Proportional to 918.49, 1,268.16 and 600.01

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Solution

The fourth proportional to 918.49, 1,268.16 and 600.01 is: 828.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    918.49 : 1,268.16 = 600.01 : x
  2. Step 2: Convert to fraction form
    918.49/1,268.16 = 600.01/x
  3. Step 3: Cross multiply
    918.49x = 1,268.16 × 600.01
  4. Step 4: Simplify right side
    918.49x = 760,902.34
  5. Step 5: Solve for x
    x = 760,902.34/918.49
  6. Step 6: Final answer
    x = 828.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.