Home / 846,380.60-1,269,667.20-306,890.90

Finding the Fourth Proportional to 846,380.60, 1,269,667.20 and 306,890.90

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Solution

The fourth proportional to 846,380.60, 1,269,667.20 and 306,890.90 is: 460,371.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,380.60 : 1,269,667.20 = 306,890.90 : x
  2. Step 2: Convert to fraction form
    846,380.60/1,269,667.20 = 306,890.90/x
  3. Step 3: Cross multiply
    846,380.60x = 1,269,667.20 × 306,890.90
  4. Step 4: Simplify right side
    846,380.60x = 389,649,309,708.48
  5. Step 5: Solve for x
    x = 389,649,309,708.48/846,380.60
  6. Step 6: Final answer
    x = 460,371.27

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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.