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Finding the Fourth Proportional to 999.28, 1,495.27 and 588.61

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Solution

The fourth proportional to 999.28, 1,495.27 and 588.61 is: 880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    999.28 : 1,495.27 = 588.61 : x
  2. Step 2: Convert to fraction form
    999.28/1,495.27 = 588.61/x
  3. Step 3: Cross multiply
    999.28x = 1,495.27 × 588.61
  4. Step 4: Simplify right side
    999.28x = 880,130.87
  5. Step 5: Solve for x
    x = 880,130.87/999.28
  6. Step 6: Final answer
    x = 880.77

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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.