Home / 1,290,295-1,922,941.31-1,223,110.36

Finding the Fourth Proportional to 1,290,295, 1,922,941.31 and 1,223,110.36

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Solution

The fourth proportional to 1,290,295, 1,922,941.31 and 1,223,110.36 is: 1,822,815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,295 : 1,922,941.31 = 1,223,110.36 : x
  2. Step 2: Convert to fraction form
    1,290,295/1,922,941.31 = 1,223,110.36/x
  3. Step 3: Cross multiply
    1,290,295x = 1,922,941.31 × 1,223,110.36
  4. Step 4: Simplify right side
    1,290,295x = 2,351,969,437,932.97
  5. Step 5: Solve for x
    x = 2,351,969,437,932.97/1,290,295
  6. Step 6: Final answer
    x = 1,822,815.28

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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.