Home / 753,166.89-1,129,759.47-220,698.72

Finding the Fourth Proportional to 753,166.89, 1,129,759.47 and 220,698.72

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Solution

The fourth proportional to 753,166.89, 1,129,759.47 and 220,698.72 is: 331,050.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,166.89 : 1,129,759.47 = 220,698.72 : x
  2. Step 2: Convert to fraction form
    753,166.89/1,129,759.47 = 220,698.72/x
  3. Step 3: Cross multiply
    753,166.89x = 1,129,759.47 × 220,698.72
  4. Step 4: Simplify right side
    753,166.89x = 249,336,468,936.88
  5. Step 5: Solve for x
    x = 249,336,468,936.88/753,166.89
  6. Step 6: Final answer
    x = 331,050.76

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Double scale
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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.