Home / 1,320,737.40-1,981,106.10-323,465.40

Finding the Fourth Proportional to 1,320,737.40, 1,981,106.10 and 323,465.40

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Solution

The fourth proportional to 1,320,737.40, 1,981,106.10 and 323,465.40 is: 485,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,737.40 : 1,981,106.10 = 323,465.40 : x
  2. Step 2: Convert to fraction form
    1,320,737.40/1,981,106.10 = 323,465.40/x
  3. Step 3: Cross multiply
    1,320,737.40x = 1,981,106.10 × 323,465.40
  4. Step 4: Simplify right side
    1,320,737.40x = 640,819,277,078.94
  5. Step 5: Solve for x
    x = 640,819,277,078.94/1,320,737.40
  6. Step 6: Final answer
    x = 485,198.10

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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.