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Finding the Fourth Proportional to 655,840.78, 983,667.73 and 206,549.96

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Solution

The fourth proportional to 655,840.78, 983,667.73 and 206,549.96 is: 309,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,840.78 : 983,667.73 = 206,549.96 : x
  2. Step 2: Convert to fraction form
    655,840.78/983,667.73 = 206,549.96/x
  3. Step 3: Cross multiply
    655,840.78x = 983,667.73 × 206,549.96
  4. Step 4: Simplify right side
    655,840.78x = 203,176,530,284.79
  5. Step 5: Solve for x
    x = 203,176,530,284.79/655,840.78
  6. Step 6: Final answer
    x = 309,795.51

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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.