Home / 682,406.20-1,023,609.30-303,326.20

Finding the Fourth Proportional to 682,406.20, 1,023,609.30 and 303,326.20

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Solution

The fourth proportional to 682,406.20, 1,023,609.30 and 303,326.20 is: 454,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,406.20 : 1,023,609.30 = 303,326.20 : x
  2. Step 2: Convert to fraction form
    682,406.20/1,023,609.30 = 303,326.20/x
  3. Step 3: Cross multiply
    682,406.20x = 1,023,609.30 × 303,326.20
  4. Step 4: Simplify right side
    682,406.20x = 310,487,519,253.66
  5. Step 5: Solve for x
    x = 310,487,519,253.66/682,406.20
  6. Step 6: Final answer
    x = 454,989.30

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Half scale
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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.