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Finding the Fourth Proportional to 804.01, 1,109.52 and 454.69

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Solution

The fourth proportional to 804.01, 1,109.52 and 454.69 is: 627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.01 : 1,109.52 = 454.69 : x
  2. Step 2: Convert to fraction form
    804.01/1,109.52 = 454.69/x
  3. Step 3: Cross multiply
    804.01x = 1,109.52 × 454.69
  4. Step 4: Simplify right side
    804.01x = 504,487.65
  5. Step 5: Solve for x
    x = 504,487.65/804.01
  6. Step 6: Final answer
    x = 627.46

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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.