Home / 998,451.28-1,377,863.48-545,742.28

Finding the Fourth Proportional to 998,451.28, 1,377,863.48 and 545,742.28

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Solution

The fourth proportional to 998,451.28, 1,377,863.48 and 545,742.28 is: 753,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,451.28 : 1,377,863.48 = 545,742.28 : x
  2. Step 2: Convert to fraction form
    998,451.28/1,377,863.48 = 545,742.28/x
  3. Step 3: Cross multiply
    998,451.28x = 1,377,863.48 × 545,742.28
  4. Step 4: Simplify right side
    998,451.28x = 751,958,357,103.94
  5. Step 5: Solve for x
    x = 751,958,357,103.94/998,451.28
  6. Step 6: Final answer
    x = 753,124.74

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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.