Home / 681,238.60-1,021,857.90-207,923.20

Finding the Fourth Proportional to 681,238.60, 1,021,857.90 and 207,923.20

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Solution

The fourth proportional to 681,238.60, 1,021,857.90 and 207,923.20 is: 311,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,238.60 : 1,021,857.90 = 207,923.20 : x
  2. Step 2: Convert to fraction form
    681,238.60/1,021,857.90 = 207,923.20/x
  3. Step 3: Cross multiply
    681,238.60x = 1,021,857.90 × 207,923.20
  4. Step 4: Simplify right side
    681,238.60x = 212,467,964,513.28
  5. Step 5: Solve for x
    x = 212,467,964,513.28/681,238.60
  6. Step 6: Final answer
    x = 311,884.80

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1.5x scale

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.