Home / 809,591.72-1,116,768.20-523,111.80

Finding the Fourth Proportional to 809,591.72, 1,116,768.20 and 523,111.80

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Solution

The fourth proportional to 809,591.72, 1,116,768.20 and 523,111.80 is: 721,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,591.72 : 1,116,768.20 = 523,111.80 : x
  2. Step 2: Convert to fraction form
    809,591.72/1,116,768.20 = 523,111.80/x
  3. Step 3: Cross multiply
    809,591.72x = 1,116,768.20 × 523,111.80
  4. Step 4: Simplify right side
    809,591.72x = 584,194,623,284.76
  5. Step 5: Solve for x
    x = 584,194,623,284.76/809,591.72
  6. Step 6: Final answer
    x = 721,591.65

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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.