Home / 726,920.34-1,090,603.74-372,183.42

Finding the Fourth Proportional to 726,920.34, 1,090,603.74 and 372,183.42

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Solution

The fourth proportional to 726,920.34, 1,090,603.74 and 372,183.42 is: 558,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,920.34 : 1,090,603.74 = 372,183.42 : x
  2. Step 2: Convert to fraction form
    726,920.34/1,090,603.74 = 372,183.42/x
  3. Step 3: Cross multiply
    726,920.34x = 1,090,603.74 × 372,183.42
  4. Step 4: Simplify right side
    726,920.34x = 405,904,629,817.99
  5. Step 5: Solve for x
    x = 405,904,629,817.99/726,920.34
  6. Step 6: Final answer
    x = 558,389.42

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1.5x scale

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.