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Finding the Fourth Proportional to 694.58, 1,045.22 and 572.07

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Solution

The fourth proportional to 694.58, 1,045.22 and 572.07 is: 860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.58 : 1,045.22 = 572.07 : x
  2. Step 2: Convert to fraction form
    694.58/1,045.22 = 572.07/x
  3. Step 3: Cross multiply
    694.58x = 1,045.22 × 572.07
  4. Step 4: Simplify right side
    694.58x = 597,936.15
  5. Step 5: Solve for x
    x = 597,936.15/694.58
  6. Step 6: Final answer
    x = 860.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.