Home / 683,608.72-1,025,415.60-210,290.80

Finding the Fourth Proportional to 683,608.72, 1,025,415.60 and 210,290.80

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Solution

The fourth proportional to 683,608.72, 1,025,415.60 and 210,290.80 is: 315,436.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,608.72 : 1,025,415.60 = 210,290.80 : x
  2. Step 2: Convert to fraction form
    683,608.72/1,025,415.60 = 210,290.80/x
  3. Step 3: Cross multiply
    683,608.72x = 1,025,415.60 × 210,290.80
  4. Step 4: Simplify right side
    683,608.72x = 215,635,466,856.48
  5. Step 5: Solve for x
    x = 215,635,466,856.48/683,608.72
  6. Step 6: Final answer
    x = 315,436.98

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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.