Home / 1,378,575.70-2,067,863.55-419,029.45

Finding the Fourth Proportional to 1,378,575.70, 2,067,863.55 and 419,029.45

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Solution

The fourth proportional to 1,378,575.70, 2,067,863.55 and 419,029.45 is: 628,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,575.70 : 2,067,863.55 = 419,029.45 : x
  2. Step 2: Convert to fraction form
    1,378,575.70/2,067,863.55 = 419,029.45/x
  3. Step 3: Cross multiply
    1,378,575.70x = 2,067,863.55 × 419,029.45
  4. Step 4: Simplify right side
    1,378,575.70x = 866,495,726,031.55
  5. Step 5: Solve for x
    x = 866,495,726,031.55/1,378,575.70
  6. Step 6: Final answer
    x = 628,544.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.