Home / 815,540.70-1,223,311.05-697,442.70

Finding the Fourth Proportional to 815,540.70, 1,223,311.05 and 697,442.70

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Solution

The fourth proportional to 815,540.70, 1,223,311.05 and 697,442.70 is: 1,046,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,540.70 : 1,223,311.05 = 697,442.70 : x
  2. Step 2: Convert to fraction form
    815,540.70/1,223,311.05 = 697,442.70/x
  3. Step 3: Cross multiply
    815,540.70x = 1,223,311.05 × 697,442.70
  4. Step 4: Simplify right side
    815,540.70x = 853,189,361,651.84
  5. Step 5: Solve for x
    x = 853,189,361,651.84/815,540.70
  6. Step 6: Final answer
    x = 1,046,164.05

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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.