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Finding the Fourth Proportional to 794.24, 1,095.36 and 518.72

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Solution

The fourth proportional to 794.24, 1,095.36 and 518.72 is: 715.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.24 : 1,095.36 = 518.72 : x
  2. Step 2: Convert to fraction form
    794.24/1,095.36 = 518.72/x
  3. Step 3: Cross multiply
    794.24x = 1,095.36 × 518.72
  4. Step 4: Simplify right side
    794.24x = 568,185.14
  5. Step 5: Solve for x
    x = 568,185.14/794.24
  6. Step 6: Final answer
    x = 715.38

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Double scale
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1.5x scale

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.