Home / 811,764.70-1,217,660.82-243,013.48

Finding the Fourth Proportional to 811,764.70, 1,217,660.82 and 243,013.48

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Solution

The fourth proportional to 811,764.70, 1,217,660.82 and 243,013.48 is: 364,524.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,764.70 : 1,217,660.82 = 243,013.48 : x
  2. Step 2: Convert to fraction form
    811,764.70/1,217,660.82 = 243,013.48/x
  3. Step 3: Cross multiply
    811,764.70x = 1,217,660.82 × 243,013.48
  4. Step 4: Simplify right side
    811,764.70x = 295,907,993,327.85
  5. Step 5: Solve for x
    x = 295,907,993,327.85/811,764.70
  6. Step 6: Final answer
    x = 364,524.34

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1.5x scale

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.