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Finding the Fourth Proportional to 805.24, 1,204.62 and 705.88

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Solution

The fourth proportional to 805.24, 1,204.62 and 705.88 is: 1,055.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    805.24 : 1,204.62 = 705.88 : x
  2. Step 2: Convert to fraction form
    805.24/1,204.62 = 705.88/x
  3. Step 3: Cross multiply
    805.24x = 1,204.62 × 705.88
  4. Step 4: Simplify right side
    805.24x = 850,317.17
  5. Step 5: Solve for x
    x = 850,317.17/805.24
  6. Step 6: Final answer
    x = 1,055.98

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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.