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Finding the Fourth Proportional to 588.28, 811.74 and 392.08

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Solution

The fourth proportional to 588.28, 811.74 and 392.08 is: 541.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.28 : 811.74 = 392.08 : x
  2. Step 2: Convert to fraction form
    588.28/811.74 = 392.08/x
  3. Step 3: Cross multiply
    588.28x = 811.74 × 392.08
  4. Step 4: Simplify right side
    588.28x = 318,267.02
  5. Step 5: Solve for x
    x = 318,267.02/588.28
  6. Step 6: Final answer
    x = 541.01

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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.