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Finding the Fourth Proportional to 982.60, 1,473.90 and 593.80

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Solution

The fourth proportional to 982.60, 1,473.90 and 593.80 is: 890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.60 : 1,473.90 = 593.80 : x
  2. Step 2: Convert to fraction form
    982.60/1,473.90 = 593.80/x
  3. Step 3: Cross multiply
    982.60x = 1,473.90 × 593.80
  4. Step 4: Simplify right side
    982.60x = 875,201.82
  5. Step 5: Solve for x
    x = 875,201.82/982.60
  6. Step 6: Final answer
    x = 890.70

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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.