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Finding the Fourth Proportional to 490,614.60, 735,921.90 and 356,770.20

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Solution

The fourth proportional to 490,614.60, 735,921.90 and 356,770.20 is: 535,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,614.60 : 735,921.90 = 356,770.20 : x
  2. Step 2: Convert to fraction form
    490,614.60/735,921.90 = 356,770.20/x
  3. Step 3: Cross multiply
    490,614.60x = 735,921.90 × 356,770.20
  4. Step 4: Simplify right side
    490,614.60x = 262,555,003,447.38
  5. Step 5: Solve for x
    x = 262,555,003,447.38/490,614.60
  6. Step 6: Final answer
    x = 535,155.30

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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.