Home / 2,190,201.68-3,022,446.48-1,223,345.76

Finding the Fourth Proportional to 2,190,201.68, 3,022,446.48 and 1,223,345.76

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Solution

The fourth proportional to 2,190,201.68, 3,022,446.48 and 1,223,345.76 is: 1,688,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,201.68 : 3,022,446.48 = 1,223,345.76 : x
  2. Step 2: Convert to fraction form
    2,190,201.68/3,022,446.48 = 1,223,345.76/x
  3. Step 3: Cross multiply
    2,190,201.68x = 3,022,446.48 × 1,223,345.76
  4. Step 4: Simplify right side
    2,190,201.68x = 3,697,497,086,134.93
  5. Step 5: Solve for x
    x = 3,697,497,086,134.93/2,190,201.68
  6. Step 6: Final answer
    x = 1,688,199.37

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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.