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Finding the Fourth Proportional to 655,854.59, 983,817.09 and 206,610.62

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Solution

The fourth proportional to 655,854.59, 983,817.09 and 206,610.62 is: 309,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,854.59 : 983,817.09 = 206,610.62 : x
  2. Step 2: Convert to fraction form
    655,854.59/983,817.09 = 206,610.62/x
  3. Step 3: Cross multiply
    655,854.59x = 983,817.09 × 206,610.62
  4. Step 4: Simplify right side
    655,854.59x = 203,267,054,012.41
  5. Step 5: Solve for x
    x = 203,267,054,012.41/655,854.59
  6. Step 6: Final answer
    x = 309,927.01

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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.