Home / 1,292,979.76-1,939,471.14-394,373.92

Finding the Fourth Proportional to 1,292,979.76, 1,939,471.14 and 394,373.92

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Solution

The fourth proportional to 1,292,979.76, 1,939,471.14 and 394,373.92 is: 591,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,979.76 : 1,939,471.14 = 394,373.92 : x
  2. Step 2: Convert to fraction form
    1,292,979.76/1,939,471.14 = 394,373.92/x
  3. Step 3: Cross multiply
    1,292,979.76x = 1,939,471.14 × 394,373.92
  4. Step 4: Simplify right side
    1,292,979.76x = 764,876,836,208.67
  5. Step 5: Solve for x
    x = 764,876,836,208.67/1,292,979.76
  6. Step 6: Final answer
    x = 591,561.34

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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.