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Finding the Fourth Proportional to 589.74, 885.81 and 498.60

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Solution

The fourth proportional to 589.74, 885.81 and 498.60 is: 748.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.74 : 885.81 = 498.60 : x
  2. Step 2: Convert to fraction form
    589.74/885.81 = 498.60/x
  3. Step 3: Cross multiply
    589.74x = 885.81 × 498.60
  4. Step 4: Simplify right side
    589.74x = 441,664.87
  5. Step 5: Solve for x
    x = 441,664.87/589.74
  6. Step 6: Final answer
    x = 748.91

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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.