Home / 886,960.80-1,328,910.30-412,673.40

Finding the Fourth Proportional to 886,960.80, 1,328,910.30 and 412,673.40

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Solution

The fourth proportional to 886,960.80, 1,328,910.30 and 412,673.40 is: 618,297.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,960.80 : 1,328,910.30 = 412,673.40 : x
  2. Step 2: Convert to fraction form
    886,960.80/1,328,910.30 = 412,673.40/x
  3. Step 3: Cross multiply
    886,960.80x = 1,328,910.30 × 412,673.40
  4. Step 4: Simplify right side
    886,960.80x = 548,405,931,796.02
  5. Step 5: Solve for x
    x = 548,405,931,796.02/886,960.80
  6. Step 6: Final answer
    x = 618,297.82

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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.