Home / 2,102,457.60-3,150,057.60-978,220.80

Finding the Fourth Proportional to 2,102,457.60, 3,150,057.60 and 978,220.80

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Solution

The fourth proportional to 2,102,457.60, 3,150,057.60 and 978,220.80 is: 1,465,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102,457.60 : 3,150,057.60 = 978,220.80 : x
  2. Step 2: Convert to fraction form
    2,102,457.60/3,150,057.60 = 978,220.80/x
  3. Step 3: Cross multiply
    2,102,457.60x = 3,150,057.60 × 978,220.80
  4. Step 4: Simplify right side
    2,102,457.60x = 3,081,451,865,518.08
  5. Step 5: Solve for x
    x = 3,081,451,865,518.08/2,102,457.60
  6. Step 6: Final answer
    x = 1,465,642.81

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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.