Home / 680,840.38-1,021,371.45-201,116.86

Finding the Fourth Proportional to 680,840.38, 1,021,371.45 and 201,116.86

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Solution

The fourth proportional to 680,840.38, 1,021,371.45 and 201,116.86 is: 301,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,840.38 : 1,021,371.45 = 201,116.86 : x
  2. Step 2: Convert to fraction form
    680,840.38/1,021,371.45 = 201,116.86/x
  3. Step 3: Cross multiply
    680,840.38x = 1,021,371.45 × 201,116.86
  4. Step 4: Simplify right side
    680,840.38x = 205,415,018,917.65
  5. Step 5: Solve for x
    x = 205,415,018,917.65/680,840.38
  6. Step 6: Final answer
    x = 301,708.04

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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.