Home / 998,830.34-1,378,385.87-546,121.34

Finding the Fourth Proportional to 998,830.34, 1,378,385.87 and 546,121.34

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Solution

The fourth proportional to 998,830.34, 1,378,385.87 and 546,121.34 is: 753,647.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,830.34 : 1,378,385.87 = 546,121.34 : x
  2. Step 2: Convert to fraction form
    998,830.34/1,378,385.87 = 546,121.34/x
  3. Step 3: Cross multiply
    998,830.34x = 1,378,385.87 × 546,121.34
  4. Step 4: Simplify right side
    998,830.34x = 752,765,928,738.93
  5. Step 5: Solve for x
    x = 752,765,928,738.93/998,830.34
  6. Step 6: Final answer
    x = 753,647.44

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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.