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Finding the Fourth Proportional to 706,610.40, 1,059,550.80 and 207,909.60

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Solution

The fourth proportional to 706,610.40, 1,059,550.80 and 207,909.60 is: 311,757.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,610.40 : 1,059,550.80 = 207,909.60 : x
  2. Step 2: Convert to fraction form
    706,610.40/1,059,550.80 = 207,909.60/x
  3. Step 3: Cross multiply
    706,610.40x = 1,059,550.80 × 207,909.60
  4. Step 4: Simplify right side
    706,610.40x = 220,290,783,007.68
  5. Step 5: Solve for x
    x = 220,290,783,007.68/706,610.40
  6. Step 6: Final answer
    x = 311,757.06

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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.