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Finding the Fourth Proportional to 954.36, 1,317.24 and 622.22

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Solution

The fourth proportional to 954.36, 1,317.24 and 622.22 is: 858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.36 : 1,317.24 = 622.22 : x
  2. Step 2: Convert to fraction form
    954.36/1,317.24 = 622.22/x
  3. Step 3: Cross multiply
    954.36x = 1,317.24 × 622.22
  4. Step 4: Simplify right side
    954.36x = 819,606.49
  5. Step 5: Solve for x
    x = 819,606.49/954.36
  6. Step 6: Final answer
    x = 858.80

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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.