Home / 785,355.28-1,083,761.85-479,942.62

Finding the Fourth Proportional to 785,355.28, 1,083,761.85 and 479,942.62

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Solution

The fourth proportional to 785,355.28, 1,083,761.85 and 479,942.62 is: 662,303.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,355.28 : 1,083,761.85 = 479,942.62 : x
  2. Step 2: Convert to fraction form
    785,355.28/1,083,761.85 = 479,942.62/x
  3. Step 3: Cross multiply
    785,355.28x = 1,083,761.85 × 479,942.62
  4. Step 4: Simplify right side
    785,355.28x = 520,143,501,745.05
  5. Step 5: Solve for x
    x = 520,143,501,745.05/785,355.28
  6. Step 6: Final answer
    x = 662,303.44

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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.