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Finding the Fourth Proportional to 804.98, 1,110.78 and 450.92

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Solution

The fourth proportional to 804.98, 1,110.78 and 450.92 is: 622.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.98 : 1,110.78 = 450.92 : x
  2. Step 2: Convert to fraction form
    804.98/1,110.78 = 450.92/x
  3. Step 3: Cross multiply
    804.98x = 1,110.78 × 450.92
  4. Step 4: Simplify right side
    804.98x = 500,875.69
  5. Step 5: Solve for x
    x = 500,875.69/804.98
  6. Step 6: Final answer
    x = 622.22

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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.