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Finding the Fourth Proportional to 887.22, 1,224.74 and 568.60

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Solution

The fourth proportional to 887.22, 1,224.74 and 568.60 is: 784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.22 : 1,224.74 = 568.60 : x
  2. Step 2: Convert to fraction form
    887.22/1,224.74 = 568.60/x
  3. Step 3: Cross multiply
    887.22x = 1,224.74 × 568.60
  4. Step 4: Simplify right side
    887.22x = 696,387.16
  5. Step 5: Solve for x
    x = 696,387.16/887.22
  6. Step 6: Final answer
    x = 784.91

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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.