Home / 809,166.60-1,214,187.30-359,956.80

Finding the Fourth Proportional to 809,166.60, 1,214,187.30 and 359,956.80

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Solution

The fourth proportional to 809,166.60, 1,214,187.30 and 359,956.80 is: 540,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,166.60 : 1,214,187.30 = 359,956.80 : x
  2. Step 2: Convert to fraction form
    809,166.60/1,214,187.30 = 359,956.80/x
  3. Step 3: Cross multiply
    809,166.60x = 1,214,187.30 × 359,956.80
  4. Step 4: Simplify right side
    809,166.60x = 437,054,975,108.64
  5. Step 5: Solve for x
    x = 437,054,975,108.64/809,166.60
  6. Step 6: Final answer
    x = 540,129.78

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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.