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Finding the Fourth Proportional to 997.58, 1,494.32 and 585.47

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Solution

The fourth proportional to 997.58, 1,494.32 and 585.47 is: 877.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    997.58 : 1,494.32 = 585.47 : x
  2. Step 2: Convert to fraction form
    997.58/1,494.32 = 585.47/x
  3. Step 3: Cross multiply
    997.58x = 1,494.32 × 585.47
  4. Step 4: Simplify right side
    997.58x = 874,869.13
  5. Step 5: Solve for x
    x = 874,869.13/997.58
  6. Step 6: Final answer
    x = 877.00

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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.