Home / 753,137.73-1,129,706.39-220,658.58

Finding the Fourth Proportional to 753,137.73, 1,129,706.39 and 220,658.58

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Solution

The fourth proportional to 753,137.73, 1,129,706.39 and 220,658.58 is: 330,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,137.73 : 1,129,706.39 = 220,658.58 : x
  2. Step 2: Convert to fraction form
    753,137.73/1,129,706.39 = 220,658.58/x
  3. Step 3: Cross multiply
    753,137.73x = 1,129,706.39 × 220,658.58
  4. Step 4: Simplify right side
    753,137.73x = 249,279,408,385.97
  5. Step 5: Solve for x
    x = 249,279,408,385.97/753,137.73
  6. Step 6: Final answer
    x = 330,987.81

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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.