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Finding the Fourth Proportional to 680,891.88, 1,021,567.86 and 301,760.76

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Solution

The fourth proportional to 680,891.88, 1,021,567.86 and 301,760.76 is: 452,743.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,891.88 : 1,021,567.86 = 301,760.76 : x
  2. Step 2: Convert to fraction form
    680,891.88/1,021,567.86 = 301,760.76/x
  3. Step 3: Cross multiply
    680,891.88x = 1,021,567.86 × 301,760.76
  4. Step 4: Simplify right side
    680,891.88x = 308,269,093,825.17
  5. Step 5: Solve for x
    x = 308,269,093,825.17/680,891.88
  6. Step 6: Final answer
    x = 452,743.09

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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.