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Finding the Fourth Proportional to 490,168.60, 735,252.90 and 445,845.40

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Solution

The fourth proportional to 490,168.60, 735,252.90 and 445,845.40 is: 668,768.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,168.60 : 735,252.90 = 445,845.40 : x
  2. Step 2: Convert to fraction form
    490,168.60/735,252.90 = 445,845.40/x
  3. Step 3: Cross multiply
    490,168.60x = 735,252.90 × 445,845.40
  4. Step 4: Simplify right side
    490,168.60x = 327,809,123,301.66
  5. Step 5: Solve for x
    x = 327,809,123,301.66/490,168.60
  6. Step 6: Final answer
    x = 668,768.10

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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.