Home / 820,225.60-1,230,338.40-809,166.40

Finding the Fourth Proportional to 820,225.60, 1,230,338.40 and 809,166.40

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Solution

The fourth proportional to 820,225.60, 1,230,338.40 and 809,166.40 is: 1,213,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,225.60 : 1,230,338.40 = 809,166.40 : x
  2. Step 2: Convert to fraction form
    820,225.60/1,230,338.40 = 809,166.40/x
  3. Step 3: Cross multiply
    820,225.60x = 1,230,338.40 × 809,166.40
  4. Step 4: Simplify right side
    820,225.60x = 995,548,493,909.76
  5. Step 5: Solve for x
    x = 995,548,493,909.76/820,225.60
  6. Step 6: Final answer
    x = 1,213,749.60

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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.