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Finding the Fourth Proportional to 384,019.40, 576,029.10 and 370,022.60

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Solution

The fourth proportional to 384,019.40, 576,029.10 and 370,022.60 is: 555,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,019.40 : 576,029.10 = 370,022.60 : x
  2. Step 2: Convert to fraction form
    384,019.40/576,029.10 = 370,022.60/x
  3. Step 3: Cross multiply
    384,019.40x = 576,029.10 × 370,022.60
  4. Step 4: Simplify right side
    384,019.40x = 213,143,785,257.66
  5. Step 5: Solve for x
    x = 213,143,785,257.66/384,019.40
  6. Step 6: Final answer
    x = 555,033.90

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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.