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Finding the Fourth Proportional to 804.37, 1,109.85 and 472.84

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Solution

The fourth proportional to 804.37, 1,109.85 and 472.84 is: 652.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.37 : 1,109.85 = 472.84 : x
  2. Step 2: Convert to fraction form
    804.37/1,109.85 = 472.84/x
  3. Step 3: Cross multiply
    804.37x = 1,109.85 × 472.84
  4. Step 4: Simplify right side
    804.37x = 524,781.47
  5. Step 5: Solve for x
    x = 524,781.47/804.37
  6. Step 6: Final answer
    x = 652.41

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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.