Home / 806,103.37-1,209,912.62-422,127.82

Finding the Fourth Proportional to 806,103.37, 1,209,912.62 and 422,127.82

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Solution

The fourth proportional to 806,103.37, 1,209,912.62 and 422,127.82 is: 633,588.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,103.37 : 1,209,912.62 = 422,127.82 : x
  2. Step 2: Convert to fraction form
    806,103.37/1,209,912.62 = 422,127.82/x
  3. Step 3: Cross multiply
    806,103.37x = 1,209,912.62 × 422,127.82
  4. Step 4: Simplify right side
    806,103.37x = 510,737,776,671.09
  5. Step 5: Solve for x
    x = 510,737,776,671.09/806,103.37
  6. Step 6: Final answer
    x = 633,588.44

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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.