Home / 2,871,245.90-4,307,452.05-978,178.70

Finding the Fourth Proportional to 2,871,245.90, 4,307,452.05 and 978,178.70

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Solution

The fourth proportional to 2,871,245.90, 4,307,452.05 and 978,178.70 is: 1,467,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871,245.90 : 4,307,452.05 = 978,178.70 : x
  2. Step 2: Convert to fraction form
    2,871,245.90/4,307,452.05 = 978,178.70/x
  3. Step 3: Cross multiply
    2,871,245.90x = 4,307,452.05 × 978,178.70
  4. Step 4: Simplify right side
    2,871,245.90x = 4,213,457,846,581.33
  5. Step 5: Solve for x
    x = 4,213,457,846,581.33/2,871,245.90
  6. Step 6: Final answer
    x = 1,467,466.74

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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.