Home / 726,737.80-1,090,107.06-326,911.48

Finding the Fourth Proportional to 726,737.80, 1,090,107.06 and 326,911.48

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Solution

The fourth proportional to 726,737.80, 1,090,107.06 and 326,911.48 is: 490,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,737.80 : 1,090,107.06 = 326,911.48 : x
  2. Step 2: Convert to fraction form
    726,737.80/1,090,107.06 = 326,911.48/x
  3. Step 3: Cross multiply
    726,737.80x = 1,090,107.06 × 326,911.48
  4. Step 4: Simplify right side
    726,737.80x = 356,368,512,343.05
  5. Step 5: Solve for x
    x = 356,368,512,343.05/726,737.80
  6. Step 6: Final answer
    x = 490,367.38

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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.