Home / 809,942.54-1,117,732.54-470,410.80

Finding the Fourth Proportional to 809,942.54, 1,117,732.54 and 470,410.80

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Solution

The fourth proportional to 809,942.54, 1,117,732.54 and 470,410.80 is: 649,173.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,942.54 : 1,117,732.54 = 470,410.80 : x
  2. Step 2: Convert to fraction form
    809,942.54/1,117,732.54 = 470,410.80/x
  3. Step 3: Cross multiply
    809,942.54x = 1,117,732.54 × 470,410.80
  4. Step 4: Simplify right side
    809,942.54x = 525,793,458,327.43
  5. Step 5: Solve for x
    x = 525,793,458,327.43/809,942.54
  6. Step 6: Final answer
    x = 649,173.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.