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Finding the Fourth Proportional to 794.25, 1,095.93 and 462.78

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Solution

The fourth proportional to 794.25, 1,095.93 and 462.78 is: 638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.25 : 1,095.93 = 462.78 : x
  2. Step 2: Convert to fraction form
    794.25/1,095.93 = 462.78/x
  3. Step 3: Cross multiply
    794.25x = 1,095.93 × 462.78
  4. Step 4: Simplify right side
    794.25x = 507,174.49
  5. Step 5: Solve for x
    x = 507,174.49/794.25
  6. Step 6: Final answer
    x = 638.56

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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.