Home / 547,182.12-821,033.10-378,961.32

Finding the Fourth Proportional to 547,182.12, 821,033.10 and 378,961.32

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Solution

The fourth proportional to 547,182.12, 821,033.10 and 378,961.32 is: 568,621.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,182.12 : 821,033.10 = 378,961.32 : x
  2. Step 2: Convert to fraction form
    547,182.12/821,033.10 = 378,961.32/x
  3. Step 3: Cross multiply
    547,182.12x = 821,033.10 × 378,961.32
  4. Step 4: Simplify right side
    547,182.12x = 311,139,787,339.69
  5. Step 5: Solve for x
    x = 311,139,787,339.69/547,182.12
  6. Step 6: Final answer
    x = 568,621.99

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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.