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Finding the Fourth Proportional to 655,397.73, 983,478.71 and 276,295.25

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Solution

The fourth proportional to 655,397.73, 983,478.71 and 276,295.25 is: 414,603.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,397.73 : 983,478.71 = 276,295.25 : x
  2. Step 2: Convert to fraction form
    655,397.73/983,478.71 = 276,295.25/x
  3. Step 3: Cross multiply
    655,397.73x = 983,478.71 × 276,295.25
  4. Step 4: Simplify right side
    655,397.73x = 271,730,499,198.56
  5. Step 5: Solve for x
    x = 271,730,499,198.56/655,397.73
  6. Step 6: Final answer
    x = 414,603.97

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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.