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Finding the Fourth Proportional to 547,858.00, 756,029.95 and 306,142.55

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Solution

The fourth proportional to 547,858.00, 756,029.95 and 306,142.55 is: 422,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,858.00 : 756,029.95 = 306,142.55 : x
  2. Step 2: Convert to fraction form
    547,858.00/756,029.95 = 306,142.55/x
  3. Step 3: Cross multiply
    547,858.00x = 756,029.95 × 306,142.55
  4. Step 4: Simplify right side
    547,858.00x = 231,452,941,033.70
  5. Step 5: Solve for x
    x = 231,452,941,033.70/547,858.00
  6. Step 6: Final answer
    x = 422,468.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.