Home / 1,222,732.80-1,821,428.64-1,202,612.40

Finding the Fourth Proportional to 1,222,732.80, 1,821,428.64 and 1,202,612.40

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Solution

The fourth proportional to 1,222,732.80, 1,821,428.64 and 1,202,612.40 is: 1,791,456.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,732.80 : 1,821,428.64 = 1,202,612.40 : x
  2. Step 2: Convert to fraction form
    1,222,732.80/1,821,428.64 = 1,202,612.40/x
  3. Step 3: Cross multiply
    1,222,732.80x = 1,821,428.64 × 1,202,612.40
  4. Step 4: Simplify right side
    1,222,732.80x = 2,190,472,668,179.14
  5. Step 5: Solve for x
    x = 2,190,472,668,179.14/1,222,732.80
  6. Step 6: Final answer
    x = 1,791,456.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.