Home / 1,137,112.21-1,705,551.43-378,871.78

Finding the Fourth Proportional to 1,137,112.21, 1,705,551.43 and 378,871.78

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Solution

The fourth proportional to 1,137,112.21, 1,705,551.43 and 378,871.78 is: 568,268.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,112.21 : 1,705,551.43 = 378,871.78 : x
  2. Step 2: Convert to fraction form
    1,137,112.21/1,705,551.43 = 378,871.78/x
  3. Step 3: Cross multiply
    1,137,112.21x = 1,705,551.43 × 378,871.78
  4. Step 4: Simplify right side
    1,137,112.21x = 646,185,306,165.65
  5. Step 5: Solve for x
    x = 646,185,306,165.65/1,137,112.21
  6. Step 6: Final answer
    x = 568,268.73

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Double scale
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1.5x scale

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.