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Finding the Fourth Proportional to 993.02, 1,489.50 and 584.73

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Solution

The fourth proportional to 993.02, 1,489.50 and 584.73 is: 877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    993.02 : 1,489.50 = 584.73 : x
  2. Step 2: Convert to fraction form
    993.02/1,489.50 = 584.73/x
  3. Step 3: Cross multiply
    993.02x = 1,489.50 × 584.73
  4. Step 4: Simplify right side
    993.02x = 870,955.34
  5. Step 5: Solve for x
    x = 870,955.34/993.02
  6. Step 6: Final answer
    x = 877.08

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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.