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Finding the Fourth Proportional to 835.16, 1,249.71 and 504.89

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Solution

The fourth proportional to 835.16, 1,249.71 and 504.89 is: 755.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.16 : 1,249.71 = 504.89 : x
  2. Step 2: Convert to fraction form
    835.16/1,249.71 = 504.89/x
  3. Step 3: Cross multiply
    835.16x = 1,249.71 × 504.89
  4. Step 4: Simplify right side
    835.16x = 630,959.83
  5. Step 5: Solve for x
    x = 630,959.83/835.16
  6. Step 6: Final answer
    x = 755.50

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Double scale
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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.