Home / 1,235,998.60-1,853,997.90-1,215,003.40

Finding the Fourth Proportional to 1,235,998.60, 1,853,997.90 and 1,215,003.40

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Solution

The fourth proportional to 1,235,998.60, 1,853,997.90 and 1,215,003.40 is: 1,822,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,998.60 : 1,853,997.90 = 1,215,003.40 : x
  2. Step 2: Convert to fraction form
    1,235,998.60/1,853,997.90 = 1,215,003.40/x
  3. Step 3: Cross multiply
    1,235,998.60x = 1,853,997.90 × 1,215,003.40
  4. Step 4: Simplify right side
    1,235,998.60x = 2,252,613,752,092.86
  5. Step 5: Solve for x
    x = 2,252,613,752,092.86/1,235,998.60
  6. Step 6: Final answer
    x = 1,822,505.10

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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.