Home / 680,480.10-1,020,783.72-200,708.37

Finding the Fourth Proportional to 680,480.10, 1,020,783.72 and 200,708.37

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Solution

The fourth proportional to 680,480.10, 1,020,783.72 and 200,708.37 is: 301,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,480.10 : 1,020,783.72 = 200,708.37 : x
  2. Step 2: Convert to fraction form
    680,480.10/1,020,783.72 = 200,708.37/x
  3. Step 3: Cross multiply
    680,480.10x = 1,020,783.72 × 200,708.37
  4. Step 4: Simplify right side
    680,480.10x = 204,879,836,563.74
  5. Step 5: Solve for x
    x = 204,879,836,563.74/680,480.10
  6. Step 6: Final answer
    x = 301,081.31

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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.