Home / 979,831-1,352,063.10-550,159.48

Finding the Fourth Proportional to 979,831, 1,352,063.10 and 550,159.48

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Solution

The fourth proportional to 979,831, 1,352,063.10 and 550,159.48 is: 759,161.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,831 : 1,352,063.10 = 550,159.48 : x
  2. Step 2: Convert to fraction form
    979,831/1,352,063.10 = 550,159.48/x
  3. Step 3: Cross multiply
    979,831x = 1,352,063.10 × 550,159.48
  4. Step 4: Simplify right side
    979,831x = 743,850,332,023.19
  5. Step 5: Solve for x
    x = 743,850,332,023.19/979,831
  6. Step 6: Final answer
    x = 759,161.87

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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.