Home / 680,173.83-1,020,391.97-380,992.23

Finding the Fourth Proportional to 680,173.83, 1,020,391.97 and 380,992.23

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Solution

The fourth proportional to 680,173.83, 1,020,391.97 and 380,992.23 is: 571,561.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,173.83 : 1,020,391.97 = 380,992.23 : x
  2. Step 2: Convert to fraction form
    680,173.83/1,020,391.97 = 380,992.23/x
  3. Step 3: Cross multiply
    680,173.83x = 1,020,391.97 × 380,992.23
  4. Step 4: Simplify right side
    680,173.83x = 388,761,410,219.43
  5. Step 5: Solve for x
    x = 388,761,410,219.43/680,173.83
  6. Step 6: Final answer
    x = 571,561.85

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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.