Home / 998,649.50-1,378,141.17-545,940.50

Finding the Fourth Proportional to 998,649.50, 1,378,141.17 and 545,940.50

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Solution

The fourth proportional to 998,649.50, 1,378,141.17 and 545,940.50 is: 753,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,649.50 : 1,378,141.17 = 545,940.50 : x
  2. Step 2: Convert to fraction form
    998,649.50/1,378,141.17 = 545,940.50/x
  3. Step 3: Cross multiply
    998,649.50x = 1,378,141.17 × 545,940.50
  4. Step 4: Simplify right side
    998,649.50x = 752,383,079,420.39
  5. Step 5: Solve for x
    x = 752,383,079,420.39/998,649.50
  6. Step 6: Final answer
    x = 753,400.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.