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Finding the Fourth Proportional to 804.41, 1,110.18 and 455.10

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Solution

The fourth proportional to 804.41, 1,110.18 and 455.10 is: 628.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.41 : 1,110.18 = 455.10 : x
  2. Step 2: Convert to fraction form
    804.41/1,110.18 = 455.10/x
  3. Step 3: Cross multiply
    804.41x = 1,110.18 × 455.10
  4. Step 4: Simplify right side
    804.41x = 505,242.92
  5. Step 5: Solve for x
    x = 505,242.92/804.41
  6. Step 6: Final answer
    x = 628.09

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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.