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Finding the Fourth Proportional to 617,344.26, 851,895 and 345,365.16

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Solution

The fourth proportional to 617,344.26, 851,895 and 345,365.16 is: 476,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,344.26 : 851,895 = 345,365.16 : x
  2. Step 2: Convert to fraction form
    617,344.26/851,895 = 345,365.16/x
  3. Step 3: Cross multiply
    617,344.26x = 851,895 × 345,365.16
  4. Step 4: Simplify right side
    617,344.26x = 294,214,852,978.20
  5. Step 5: Solve for x
    x = 294,214,852,978.20/617,344.26
  6. Step 6: Final answer
    x = 476,581.50

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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.