Home / 2,801,447.40-4,202,171.10-2,780,452.20

Finding the Fourth Proportional to 2,801,447.40, 4,202,171.10 and 2,780,452.20

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Solution

The fourth proportional to 2,801,447.40, 4,202,171.10 and 2,780,452.20 is: 4,170,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801,447.40 : 4,202,171.10 = 2,780,452.20 : x
  2. Step 2: Convert to fraction form
    2,801,447.40/4,202,171.10 = 2,780,452.20/x
  3. Step 3: Cross multiply
    2,801,447.40x = 4,202,171.10 × 2,780,452.20
  4. Step 4: Simplify right side
    2,801,447.40x = 11,683,935,879,771.42
  5. Step 5: Solve for x
    x = 11,683,935,879,771.42/2,801,447.40
  6. Step 6: Final answer
    x = 4,170,678.30

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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.