Home / 680,731.78-1,020,859.56-200,832.12

Finding the Fourth Proportional to 680,731.78, 1,020,859.56 and 200,832.12

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Solution

The fourth proportional to 680,731.78, 1,020,859.56 and 200,832.12 is: 301,177.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,731.78 : 1,020,859.56 = 200,832.12 : x
  2. Step 2: Convert to fraction form
    680,731.78/1,020,859.56 = 200,832.12/x
  3. Step 3: Cross multiply
    680,731.78x = 1,020,859.56 × 200,832.12
  4. Step 4: Simplify right side
    680,731.78x = 205,021,389,657.07
  5. Step 5: Solve for x
    x = 205,021,389,657.07/680,731.78
  6. Step 6: Final answer
    x = 301,177.93

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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.