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Finding the Fourth Proportional to 449,999.54, 621,037.62 and 256,466.48

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Solution

The fourth proportional to 449,999.54, 621,037.62 and 256,466.48 is: 353,945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,999.54 : 621,037.62 = 256,466.48 : x
  2. Step 2: Convert to fraction form
    449,999.54/621,037.62 = 256,466.48/x
  3. Step 3: Cross multiply
    449,999.54x = 621,037.62 × 256,466.48
  4. Step 4: Simplify right side
    449,999.54x = 159,275,332,348.98
  5. Step 5: Solve for x
    x = 159,275,332,348.98/449,999.54
  6. Step 6: Final answer
    x = 353,945.54

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1.5x scale

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.