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Finding the Fourth Proportional to 850,090.60, 1,275,135.90 and 850,090.60

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Solution

The fourth proportional to 850,090.60, 1,275,135.90 and 850,090.60 is: 1,275,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,090.60 : 1,275,135.90 = 850,090.60 : x
  2. Step 2: Convert to fraction form
    850,090.60/1,275,135.90 = 850,090.60/x
  3. Step 3: Cross multiply
    850,090.60x = 1,275,135.90 × 850,090.60
  4. Step 4: Simplify right side
    850,090.60x = 1,083,981,042,312.54
  5. Step 5: Solve for x
    x = 1,083,981,042,312.54/850,090.60
  6. Step 6: Final answer
    x = 1,275,135.90

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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.