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Finding the Fourth Proportional to 617,269.71, 851,797.71 and 345,285.09

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Solution

The fourth proportional to 617,269.71, 851,797.71 and 345,285.09 is: 476,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,269.71 : 851,797.71 = 345,285.09 : x
  2. Step 2: Convert to fraction form
    617,269.71/851,797.71 = 345,285.09/x
  3. Step 3: Cross multiply
    617,269.71x = 851,797.71 × 345,285.09
  4. Step 4: Simplify right side
    617,269.71x = 294,113,048,959.14
  5. Step 5: Solve for x
    x = 294,113,048,959.14/617,269.71
  6. Step 6: Final answer
    x = 476,474.13

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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.