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Finding the Fourth Proportional to 853,899.76, 1,280,848.02 and 801,936.64

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Solution

The fourth proportional to 853,899.76, 1,280,848.02 and 801,936.64 is: 1,202,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,899.76 : 1,280,848.02 = 801,936.64 : x
  2. Step 2: Convert to fraction form
    853,899.76/1,280,848.02 = 801,936.64/x
  3. Step 3: Cross multiply
    853,899.76x = 1,280,848.02 × 801,936.64
  4. Step 4: Simplify right side
    853,899.76x = 1,027,158,957,509.45
  5. Step 5: Solve for x
    x = 1,027,158,957,509.45/853,899.76
  6. Step 6: Final answer
    x = 1,202,903.44

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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.