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Finding the Fourth Proportional to 866,560.60, 1,299,840.90 and 866,560.60

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Solution

The fourth proportional to 866,560.60, 1,299,840.90 and 866,560.60 is: 1,299,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,560.60 : 1,299,840.90 = 866,560.60 : x
  2. Step 2: Convert to fraction form
    866,560.60/1,299,840.90 = 866,560.60/x
  3. Step 3: Cross multiply
    866,560.60x = 1,299,840.90 × 866,560.60
  4. Step 4: Simplify right side
    866,560.60x = 1,126,390,910,208.54
  5. Step 5: Solve for x
    x = 1,126,390,910,208.54/866,560.60
  6. Step 6: Final answer
    x = 1,299,840.90

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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.