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Finding the Fourth Proportional to 618.60, 924.13 and 481.32

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Solution

The fourth proportional to 618.60, 924.13 and 481.32 is: 719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.60 : 924.13 = 481.32 : x
  2. Step 2: Convert to fraction form
    618.60/924.13 = 481.32/x
  3. Step 3: Cross multiply
    618.60x = 924.13 × 481.32
  4. Step 4: Simplify right side
    618.60x = 444,802.25
  5. Step 5: Solve for x
    x = 444,802.25/618.60
  6. Step 6: Final answer
    x = 719.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.