Home / 886,912.80-1,328,838.30-412,625.40

Finding the Fourth Proportional to 886,912.80, 1,328,838.30 and 412,625.40

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Solution

The fourth proportional to 886,912.80, 1,328,838.30 and 412,625.40 is: 618,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,912.80 : 1,328,838.30 = 412,625.40 : x
  2. Step 2: Convert to fraction form
    886,912.80/1,328,838.30 = 412,625.40/x
  3. Step 3: Cross multiply
    886,912.80x = 1,328,838.30 × 412,625.40
  4. Step 4: Simplify right side
    886,912.80x = 548,312,435,072.82
  5. Step 5: Solve for x
    x = 548,312,435,072.82/886,912.80
  6. Step 6: Final answer
    x = 618,225.87

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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.