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Finding the Fourth Proportional to 561,366.39, 842,119.61 and 219,765.67

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Solution

The fourth proportional to 561,366.39, 842,119.61 and 219,765.67 is: 329,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,366.39 : 842,119.61 = 219,765.67 : x
  2. Step 2: Convert to fraction form
    561,366.39/842,119.61 = 219,765.67/x
  3. Step 3: Cross multiply
    561,366.39x = 842,119.61 × 219,765.67
  4. Step 4: Simplify right side
    561,366.39x = 185,068,977,107.66
  5. Step 5: Solve for x
    x = 185,068,977,107.66/561,366.39
  6. Step 6: Final answer
    x = 329,675.91

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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.