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Finding the Fourth Proportional to 617,939.76, 852,558.60 and 345,967.60

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Solution

The fourth proportional to 617,939.76, 852,558.60 and 345,967.60 is: 477,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,939.76 : 852,558.60 = 345,967.60 : x
  2. Step 2: Convert to fraction form
    617,939.76/852,558.60 = 345,967.60/x
  3. Step 3: Cross multiply
    617,939.76x = 852,558.60 × 345,967.60
  4. Step 4: Simplify right side
    617,939.76x = 294,957,652,701.36
  5. Step 5: Solve for x
    x = 294,957,652,701.36/617,939.76
  6. Step 6: Final answer
    x = 477,324.28

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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.