Home / 762,910.88-1,050,416.52-647,942.72

Finding the Fourth Proportional to 762,910.88, 1,050,416.52 and 647,942.72

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Solution

The fourth proportional to 762,910.88, 1,050,416.52 and 647,942.72 is: 892,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,910.88 : 1,050,416.52 = 647,942.72 : x
  2. Step 2: Convert to fraction form
    762,910.88/1,050,416.52 = 647,942.72/x
  3. Step 3: Cross multiply
    762,910.88x = 1,050,416.52 × 647,942.72
  4. Step 4: Simplify right side
    762,910.88x = 680,609,737,101.73
  5. Step 5: Solve for x
    x = 680,609,737,101.73/762,910.88
  6. Step 6: Final answer
    x = 892,122.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.