Home / 998,842.78-1,378,408.35-546,133.78

Finding the Fourth Proportional to 998,842.78, 1,378,408.35 and 546,133.78

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Solution

The fourth proportional to 998,842.78, 1,378,408.35 and 546,133.78 is: 753,667.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,842.78 : 1,378,408.35 = 546,133.78 : x
  2. Step 2: Convert to fraction form
    998,842.78/1,378,408.35 = 546,133.78/x
  3. Step 3: Cross multiply
    998,842.78x = 1,378,408.35 × 546,133.78
  4. Step 4: Simplify right side
    998,842.78x = 752,795,362,569.06
  5. Step 5: Solve for x
    x = 752,795,362,569.06/998,842.78
  6. Step 6: Final answer
    x = 753,667.52

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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.