Home / 490,852.20-736,278.30-397,540.20

Finding the Fourth Proportional to 490,852.20, 736,278.30 and 397,540.20

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Solution

The fourth proportional to 490,852.20, 736,278.30 and 397,540.20 is: 596,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,852.20 : 736,278.30 = 397,540.20 : x
  2. Step 2: Convert to fraction form
    490,852.20/736,278.30 = 397,540.20/x
  3. Step 3: Cross multiply
    490,852.20x = 736,278.30 × 397,540.20
  4. Step 4: Simplify right side
    490,852.20x = 292,700,222,637.66
  5. Step 5: Solve for x
    x = 292,700,222,637.66/490,852.20
  6. Step 6: Final answer
    x = 596,310.30

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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.