Home / 680,157.83-1,020,367.97-380,976.23

Finding the Fourth Proportional to 680,157.83, 1,020,367.97 and 380,976.23

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Solution

The fourth proportional to 680,157.83, 1,020,367.97 and 380,976.23 is: 571,537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,157.83 : 1,020,367.97 = 380,976.23 : x
  2. Step 2: Convert to fraction form
    680,157.83/1,020,367.97 = 380,976.23/x
  3. Step 3: Cross multiply
    680,157.83x = 1,020,367.97 × 380,976.23
  4. Step 4: Simplify right side
    680,157.83x = 388,735,942,423.35
  5. Step 5: Solve for x
    x = 388,735,942,423.35/680,157.83
  6. Step 6: Final answer
    x = 571,537.85

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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.