Home / 1,019,778.82-1,408,733.86-817,175.62

Finding the Fourth Proportional to 1,019,778.82, 1,408,733.86 and 817,175.62

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Solution

The fourth proportional to 1,019,778.82, 1,408,733.86 and 817,175.62 is: 1,128,855.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,778.82 : 1,408,733.86 = 817,175.62 : x
  2. Step 2: Convert to fraction form
    1,019,778.82/1,408,733.86 = 817,175.62/x
  3. Step 3: Cross multiply
    1,019,778.82x = 1,408,733.86 × 817,175.62
  4. Step 4: Simplify right side
    1,019,778.82x = 1,151,182,965,460.49
  5. Step 5: Solve for x
    x = 1,151,182,965,460.49/1,019,778.82
  6. Step 6: Final answer
    x = 1,128,855.54

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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.