Home / 819,783.80-1,229,712.60-251,123.39

Finding the Fourth Proportional to 819,783.80, 1,229,712.60 and 251,123.39

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Solution

The fourth proportional to 819,783.80, 1,229,712.60 and 251,123.39 is: 376,696.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,783.80 : 1,229,712.60 = 251,123.39 : x
  2. Step 2: Convert to fraction form
    819,783.80/1,229,712.60 = 251,123.39/x
  3. Step 3: Cross multiply
    819,783.80x = 1,229,712.60 × 251,123.39
  4. Step 4: Simplify right side
    819,783.80x = 308,809,595,582.10
  5. Step 5: Solve for x
    x = 308,809,595,582.10/819,783.80
  6. Step 6: Final answer
    x = 376,696.39

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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.