Home / 814,481.50-1,221,897.72-245,815

Finding the Fourth Proportional to 814,481.50, 1,221,897.72 and 245,815

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Solution

The fourth proportional to 814,481.50, 1,221,897.72 and 245,815 is: 368,775.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,481.50 : 1,221,897.72 = 245,815 : x
  2. Step 2: Convert to fraction form
    814,481.50/1,221,897.72 = 245,815/x
  3. Step 3: Cross multiply
    814,481.50x = 1,221,897.72 × 245,815
  4. Step 4: Simplify right side
    814,481.50x = 300,360,788,041.80
  5. Step 5: Solve for x
    x = 300,360,788,041.80/814,481.50
  6. Step 6: Final answer
    x = 368,775.46

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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.