Home / 998,565.76-1,378,021.44-545,856.88

Finding the Fourth Proportional to 998,565.76, 1,378,021.44 and 545,856.88

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Solution

The fourth proportional to 998,565.76, 1,378,021.44 and 545,856.88 is: 753,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,565.76 : 1,378,021.44 = 545,856.88 : x
  2. Step 2: Convert to fraction form
    998,565.76/1,378,021.44 = 545,856.88/x
  3. Step 3: Cross multiply
    998,565.76x = 1,378,021.44 × 545,856.88
  4. Step 4: Simplify right side
    998,565.76x = 752,202,483,811.51
  5. Step 5: Solve for x
    x = 752,202,483,811.51/998,565.76
  6. Step 6: Final answer
    x = 753,282.87

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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.