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Finding the Fourth Proportional to 897.59, 1,238.96 and 582.30

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Solution

The fourth proportional to 897.59, 1,238.96 and 582.30 is: 803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    897.59 : 1,238.96 = 582.30 : x
  2. Step 2: Convert to fraction form
    897.59/1,238.96 = 582.30/x
  3. Step 3: Cross multiply
    897.59x = 1,238.96 × 582.30
  4. Step 4: Simplify right side
    897.59x = 721,443.22
  5. Step 5: Solve for x
    x = 721,443.22/897.59
  6. Step 6: Final answer
    x = 803.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.