Home / 706,087.80-1,059,131.70-422,652.60

Finding the Fourth Proportional to 706,087.80, 1,059,131.70 and 422,652.60

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Solution

The fourth proportional to 706,087.80, 1,059,131.70 and 422,652.60 is: 633,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,087.80 : 1,059,131.70 = 422,652.60 : x
  2. Step 2: Convert to fraction form
    706,087.80/1,059,131.70 = 422,652.60/x
  3. Step 3: Cross multiply
    706,087.80x = 1,059,131.70 × 422,652.60
  4. Step 4: Simplify right side
    706,087.80x = 447,644,766,747.42
  5. Step 5: Solve for x
    x = 447,644,766,747.42/706,087.80
  6. Step 6: Final answer
    x = 633,978.90

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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.