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Finding the Fourth Proportional to 902.04, 1,245.24 and 622.36

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Solution

The fourth proportional to 902.04, 1,245.24 and 622.36 is: 859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    902.04 : 1,245.24 = 622.36 : x
  2. Step 2: Convert to fraction form
    902.04/1,245.24 = 622.36/x
  3. Step 3: Cross multiply
    902.04x = 1,245.24 × 622.36
  4. Step 4: Simplify right side
    902.04x = 774,987.57
  5. Step 5: Solve for x
    x = 774,987.57/902.04
  6. Step 6: Final answer
    x = 859.15

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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.