Home / 3,108,492.70-4,661,115.18-978,004.78

Finding the Fourth Proportional to 3,108,492.70, 4,661,115.18 and 978,004.78

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Solution

The fourth proportional to 3,108,492.70, 4,661,115.18 and 978,004.78 is: 1,466,496.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,492.70 : 4,661,115.18 = 978,004.78 : x
  2. Step 2: Convert to fraction form
    3,108,492.70/4,661,115.18 = 978,004.78/x
  3. Step 3: Cross multiply
    3,108,492.70x = 4,661,115.18 × 978,004.78
  4. Step 4: Simplify right side
    3,108,492.70x = 4,558,592,926,170.56
  5. Step 5: Solve for x
    x = 4,558,592,926,170.56/3,108,492.70
  6. Step 6: Final answer
    x = 1,466,496.26

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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.