Home / 2,190,190.18-3,022,430.61-1,223,334.22

Finding the Fourth Proportional to 2,190,190.18, 3,022,430.61 and 1,223,334.22

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Solution

The fourth proportional to 2,190,190.18, 3,022,430.61 and 1,223,334.22 is: 1,688,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,190.18 : 3,022,430.61 = 1,223,334.22 : x
  2. Step 2: Convert to fraction form
    2,190,190.18/3,022,430.61 = 1,223,334.22/x
  3. Step 3: Cross multiply
    2,190,190.18x = 3,022,430.61 × 1,223,334.22
  4. Step 4: Simplify right side
    2,190,190.18x = 3,697,442,792,788.47
  5. Step 5: Solve for x
    x = 3,697,442,792,788.47/2,190,190.18
  6. Step 6: Final answer
    x = 1,688,183.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.