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Finding the Fourth Proportional to 589.71, 884.58 and 406.65

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Solution

The fourth proportional to 589.71, 884.58 and 406.65 is: 609.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.71 : 884.58 = 406.65 : x
  2. Step 2: Convert to fraction form
    589.71/884.58 = 406.65/x
  3. Step 3: Cross multiply
    589.71x = 884.58 × 406.65
  4. Step 4: Simplify right side
    589.71x = 359,714.46
  5. Step 5: Solve for x
    x = 359,714.46/589.71
  6. Step 6: Final answer
    x = 609.99

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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.