Home / 809,940.54-1,117,729.77-470,408.79

Finding the Fourth Proportional to 809,940.54, 1,117,729.77 and 470,408.79

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Solution

The fourth proportional to 809,940.54, 1,117,729.77 and 470,408.79 is: 649,171.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,940.54 : 1,117,729.77 = 470,408.79 : x
  2. Step 2: Convert to fraction form
    809,940.54/1,117,729.77 = 470,408.79/x
  3. Step 3: Cross multiply
    809,940.54x = 1,117,729.77 × 470,408.79
  4. Step 4: Simplify right side
    809,940.54x = 525,789,908,652.68
  5. Step 5: Solve for x
    x = 525,789,908,652.68/809,940.54
  6. Step 6: Final answer
    x = 649,171.00

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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.