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Finding the Fourth Proportional to 617,277.72, 851,838.96 and 345,344.52

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Solution

The fourth proportional to 617,277.72, 851,838.96 and 345,344.52 is: 476,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,277.72 : 851,838.96 = 345,344.52 : x
  2. Step 2: Convert to fraction form
    617,277.72/851,838.96 = 345,344.52/x
  3. Step 3: Cross multiply
    617,277.72x = 851,838.96 × 345,344.52
  4. Step 4: Simplify right side
    617,277.72x = 294,177,916,758.50
  5. Step 5: Solve for x
    x = 294,177,916,758.50/617,277.72
  6. Step 6: Final answer
    x = 476,573.04

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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.