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Finding the Fourth Proportional to 672.36, 927.74 and 424.00

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Solution

The fourth proportional to 672.36, 927.74 and 424.00 is: 585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.36 : 927.74 = 424.00 : x
  2. Step 2: Convert to fraction form
    672.36/927.74 = 424.00/x
  3. Step 3: Cross multiply
    672.36x = 927.74 × 424.00
  4. Step 4: Simplify right side
    672.36x = 393,355.00
  5. Step 5: Solve for x
    x = 393,355.00/672.36
  6. Step 6: Final answer
    x = 585.04

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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.