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Finding the Fourth Proportional to 655,778.33, 983,702.63 and 206,534.21

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Solution

The fourth proportional to 655,778.33, 983,702.63 and 206,534.21 is: 309,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,778.33 : 983,702.63 = 206,534.21 : x
  2. Step 2: Convert to fraction form
    655,778.33/983,702.63 = 206,534.21/x
  3. Step 3: Cross multiply
    655,778.33x = 983,702.63 × 206,534.21
  4. Step 4: Simplify right side
    655,778.33x = 203,168,239,610.79
  5. Step 5: Solve for x
    x = 203,168,239,610.79/655,778.33
  6. Step 6: Final answer
    x = 309,812.37

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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.