Home / 1,320,738.40-1,981,107.60-323,466.40

Finding the Fourth Proportional to 1,320,738.40, 1,981,107.60 and 323,466.40

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Solution

The fourth proportional to 1,320,738.40, 1,981,107.60 and 323,466.40 is: 485,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,738.40 : 1,981,107.60 = 323,466.40 : x
  2. Step 2: Convert to fraction form
    1,320,738.40/1,981,107.60 = 323,466.40/x
  3. Step 3: Cross multiply
    1,320,738.40x = 1,981,107.60 × 323,466.40
  4. Step 4: Simplify right side
    1,320,738.40x = 640,821,743,384.64
  5. Step 5: Solve for x
    x = 640,821,743,384.64/1,320,738.40
  6. Step 6: Final answer
    x = 485,199.60

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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.