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Finding the Fourth Proportional to 618.32, 927 and 586.64

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Solution

The fourth proportional to 618.32, 927 and 586.64 is: 879.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.32 : 927 = 586.64 : x
  2. Step 2: Convert to fraction form
    618.32/927 = 586.64/x
  3. Step 3: Cross multiply
    618.32x = 927 × 586.64
  4. Step 4: Simplify right side
    618.32x = 543,815.28
  5. Step 5: Solve for x
    x = 543,815.28/618.32
  6. Step 6: Final answer
    x = 879.50

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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.