Home / 1,137,109.21-1,705,546.93-378,868.78

Finding the Fourth Proportional to 1,137,109.21, 1,705,546.93 and 378,868.78

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Solution

The fourth proportional to 1,137,109.21, 1,705,546.93 and 378,868.78 is: 568,264.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,109.21 : 1,705,546.93 = 378,868.78 : x
  2. Step 2: Convert to fraction form
    1,137,109.21/1,705,546.93 = 378,868.78/x
  3. Step 3: Cross multiply
    1,137,109.21x = 1,705,546.93 × 378,868.78
  4. Step 4: Simplify right side
    1,137,109.21x = 646,178,485,431.42
  5. Step 5: Solve for x
    x = 646,178,485,431.42/1,137,109.21
  6. Step 6: Final answer
    x = 568,264.23

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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.