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Finding the Fourth Proportional to 589.64, 815.32 and 497.52

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Solution

The fourth proportional to 589.64, 815.32 and 497.52 is: 687.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.64 : 815.32 = 497.52 : x
  2. Step 2: Convert to fraction form
    589.64/815.32 = 497.52/x
  3. Step 3: Cross multiply
    589.64x = 815.32 × 497.52
  4. Step 4: Simplify right side
    589.64x = 405,638.01
  5. Step 5: Solve for x
    x = 405,638.01/589.64
  6. Step 6: Final answer
    x = 687.94

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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.