Home / 815,200.45-1,221,324.45-697,102.45

Finding the Fourth Proportional to 815,200.45, 1,221,324.45 and 697,102.45

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Solution

The fourth proportional to 815,200.45, 1,221,324.45 and 697,102.45 is: 1,044,391.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,200.45 : 1,221,324.45 = 697,102.45 : x
  2. Step 2: Convert to fraction form
    815,200.45/1,221,324.45 = 697,102.45/x
  3. Step 3: Cross multiply
    815,200.45x = 1,221,324.45 × 697,102.45
  4. Step 4: Simplify right side
    815,200.45x = 851,388,266,339.90
  5. Step 5: Solve for x
    x = 851,388,266,339.90/815,200.45
  6. Step 6: Final answer
    x = 1,044,391.31

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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.