Home / 1,320,737.20-1,981,105.80-323,465.20

Finding the Fourth Proportional to 1,320,737.20, 1,981,105.80 and 323,465.20

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Solution

The fourth proportional to 1,320,737.20, 1,981,105.80 and 323,465.20 is: 485,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,737.20 : 1,981,105.80 = 323,465.20 : x
  2. Step 2: Convert to fraction form
    1,320,737.20/1,981,105.80 = 323,465.20/x
  3. Step 3: Cross multiply
    1,320,737.20x = 1,981,105.80 × 323,465.20
  4. Step 4: Simplify right side
    1,320,737.20x = 640,818,783,818.16
  5. Step 5: Solve for x
    x = 640,818,783,818.16/1,320,737.20
  6. Step 6: Final answer
    x = 485,197.80

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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.