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Finding the Fourth Proportional to 589.91, 888.30 and 436.92

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Solution

The fourth proportional to 589.91, 888.30 and 436.92 is: 657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.91 : 888.30 = 436.92 : x
  2. Step 2: Convert to fraction form
    589.91/888.30 = 436.92/x
  3. Step 3: Cross multiply
    589.91x = 888.30 × 436.92
  4. Step 4: Simplify right side
    589.91x = 388,118.27
  5. Step 5: Solve for x
    x = 388,118.27/589.91
  6. Step 6: Final answer
    x = 657.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.