Home / 490,900.20-736,350.30-397,588.20

Finding the Fourth Proportional to 490,900.20, 736,350.30 and 397,588.20

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Solution

The fourth proportional to 490,900.20, 736,350.30 and 397,588.20 is: 596,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,900.20 : 736,350.30 = 397,588.20 : x
  2. Step 2: Convert to fraction form
    490,900.20/736,350.30 = 397,588.20/x
  3. Step 3: Cross multiply
    490,900.20x = 736,350.30 × 397,588.20
  4. Step 4: Simplify right side
    490,900.20x = 292,764,190,346.46
  5. Step 5: Solve for x
    x = 292,764,190,346.46/490,900.20
  6. Step 6: Final answer
    x = 596,382.30

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Double scale
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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.