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Finding the Fourth Proportional to 866,495.22, 1,299,242.54 and 267,295.49

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Solution

The fourth proportional to 866,495.22, 1,299,242.54 and 267,295.49 is: 400,788.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,495.22 : 1,299,242.54 = 267,295.49 : x
  2. Step 2: Convert to fraction form
    866,495.22/1,299,242.54 = 267,295.49/x
  3. Step 3: Cross multiply
    866,495.22x = 1,299,242.54 × 267,295.49
  4. Step 4: Simplify right side
    866,495.22x = 347,281,670,021.67
  5. Step 5: Solve for x
    x = 347,281,670,021.67/866,495.22
  6. Step 6: Final answer
    x = 400,788.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.