Home / 681,100.88-1,021,648.32-207,784.64

Finding the Fourth Proportional to 681,100.88, 1,021,648.32 and 207,784.64

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Solution

The fourth proportional to 681,100.88, 1,021,648.32 and 207,784.64 is: 311,676.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,100.88 : 1,021,648.32 = 207,784.64 : x
  2. Step 2: Convert to fraction form
    681,100.88/1,021,648.32 = 207,784.64/x
  3. Step 3: Cross multiply
    681,100.88x = 1,021,648.32 × 207,784.64
  4. Step 4: Simplify right side
    681,100.88x = 212,282,828,377.81
  5. Step 5: Solve for x
    x = 212,282,828,377.81/681,100.88
  6. Step 6: Final answer
    x = 311,676.04

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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.