Home / 1,855,622.49-2,778,708.60-1,222,617.21

Finding the Fourth Proportional to 1,855,622.49, 2,778,708.60 and 1,222,617.21

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Solution

The fourth proportional to 1,855,622.49, 2,778,708.60 and 1,222,617.21 is: 1,830,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,622.49 : 2,778,708.60 = 1,222,617.21 : x
  2. Step 2: Convert to fraction form
    1,855,622.49/2,778,708.60 = 1,222,617.21/x
  3. Step 3: Cross multiply
    1,855,622.49x = 2,778,708.60 × 1,222,617.21
  4. Step 4: Simplify right side
    1,855,622.49x = 3,397,296,955,935.01
  5. Step 5: Solve for x
    x = 3,397,296,955,935.01/1,855,622.49
  6. Step 6: Final answer
    x = 1,830,812.56

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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.