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Finding the Fourth Proportional to 998.16, 1,498.35 and 588.06

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Solution

The fourth proportional to 998.16, 1,498.35 and 588.06 is: 882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    998.16 : 1,498.35 = 588.06 : x
  2. Step 2: Convert to fraction form
    998.16/1,498.35 = 588.06/x
  3. Step 3: Cross multiply
    998.16x = 1,498.35 × 588.06
  4. Step 4: Simplify right side
    998.16x = 881,119.70
  5. Step 5: Solve for x
    x = 881,119.70/998.16
  6. Step 6: Final answer
    x = 882.74

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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.