Home / 769,400.40-1,156,068.90-682,795.20

Finding the Fourth Proportional to 769,400.40, 1,156,068.90 and 682,795.20

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Solution

The fourth proportional to 769,400.40, 1,156,068.90 and 682,795.20 is: 1,025,939.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,400.40 : 1,156,068.90 = 682,795.20 : x
  2. Step 2: Convert to fraction form
    769,400.40/1,156,068.90 = 682,795.20/x
  3. Step 3: Cross multiply
    769,400.40x = 1,156,068.90 × 682,795.20
  4. Step 4: Simplify right side
    769,400.40x = 789,358,295,789.28
  5. Step 5: Solve for x
    x = 789,358,295,789.28/769,400.40
  6. Step 6: Final answer
    x = 1,025,939.54

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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.