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Finding the Fourth Proportional to 449,999.20, 675,171.60 and 442,914.40

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Solution

The fourth proportional to 449,999.20, 675,171.60 and 442,914.40 is: 664,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,999.20 : 675,171.60 = 442,914.40 : x
  2. Step 2: Convert to fraction form
    449,999.20/675,171.60 = 442,914.40/x
  3. Step 3: Cross multiply
    449,999.20x = 675,171.60 × 442,914.40
  4. Step 4: Simplify right side
    449,999.20x = 299,043,224,111.04
  5. Step 5: Solve for x
    x = 299,043,224,111.04/449,999.20
  6. Step 6: Final answer
    x = 664,541.68

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.