Home / 2,190,174.68-3,022,409.22-1,223,318.72

Finding the Fourth Proportional to 2,190,174.68, 3,022,409.22 and 1,223,318.72

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Solution

The fourth proportional to 2,190,174.68, 3,022,409.22 and 1,223,318.72 is: 1,688,162.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,174.68 : 3,022,409.22 = 1,223,318.72 : x
  2. Step 2: Convert to fraction form
    2,190,174.68/3,022,409.22 = 1,223,318.72/x
  3. Step 3: Cross multiply
    2,190,174.68x = 3,022,409.22 × 1,223,318.72
  4. Step 4: Simplify right side
    2,190,174.68x = 3,697,369,778,326.60
  5. Step 5: Solve for x
    x = 3,697,369,778,326.60/2,190,174.68
  6. Step 6: Final answer
    x = 1,688,162.05

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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.