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Finding the Fourth Proportional to 449,512.56, 620,319.51 and 245,558.25

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Solution

The fourth proportional to 449,512.56, 620,319.51 and 245,558.25 is: 338,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,512.56 : 620,319.51 = 245,558.25 : x
  2. Step 2: Convert to fraction form
    449,512.56/620,319.51 = 245,558.25/x
  3. Step 3: Cross multiply
    449,512.56x = 620,319.51 × 245,558.25
  4. Step 4: Simplify right side
    449,512.56x = 152,324,573,316.46
  5. Step 5: Solve for x
    x = 152,324,573,316.46/449,512.56
  6. Step 6: Final answer
    x = 338,866.11

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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.