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Finding the Fourth Proportional to 804.04, 1,109.55 and 454.75

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Solution

The fourth proportional to 804.04, 1,109.55 and 454.75 is: 627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.04 : 1,109.55 = 454.75 : x
  2. Step 2: Convert to fraction form
    804.04/1,109.55 = 454.75/x
  3. Step 3: Cross multiply
    804.04x = 1,109.55 × 454.75
  4. Step 4: Simplify right side
    804.04x = 504,567.86
  5. Step 5: Solve for x
    x = 504,567.86/804.04
  6. Step 6: Final answer
    x = 627.54

Related Problems

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Half scale
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Double scale
Find fourth proportional to 805.04, 1,110.93 and 455.75
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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.