Home / 1,320,673.60-1,981,010.40-323,401.60

Finding the Fourth Proportional to 1,320,673.60, 1,981,010.40 and 323,401.60

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Solution

The fourth proportional to 1,320,673.60, 1,981,010.40 and 323,401.60 is: 485,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,673.60 : 1,981,010.40 = 323,401.60 : x
  2. Step 2: Convert to fraction form
    1,320,673.60/1,981,010.40 = 323,401.60/x
  3. Step 3: Cross multiply
    1,320,673.60x = 1,981,010.40 × 323,401.60
  4. Step 4: Simplify right side
    1,320,673.60x = 640,661,932,976.64
  5. Step 5: Solve for x
    x = 640,661,932,976.64/1,320,673.60
  6. Step 6: Final answer
    x = 485,102.40

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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.