Home / 770,942.81-1,156,414.22-209,977.31

Finding the Fourth Proportional to 770,942.81, 1,156,414.22 and 209,977.31

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Solution

The fourth proportional to 770,942.81, 1,156,414.22 and 209,977.31 is: 314,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,942.81 : 1,156,414.22 = 209,977.31 : x
  2. Step 2: Convert to fraction form
    770,942.81/1,156,414.22 = 209,977.31/x
  3. Step 3: Cross multiply
    770,942.81x = 1,156,414.22 × 209,977.31
  4. Step 4: Simplify right side
    770,942.81x = 242,820,749,789.91
  5. Step 5: Solve for x
    x = 242,820,749,789.91/770,942.81
  6. Step 6: Final answer
    x = 314,965.97

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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.