Home / 1,550,639.78-2,139,569.26-905,935.47

Finding the Fourth Proportional to 1,550,639.78, 2,139,569.26 and 905,935.47

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Solution

The fourth proportional to 1,550,639.78, 2,139,569.26 and 905,935.47 is: 1,250,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,639.78 : 2,139,569.26 = 905,935.47 : x
  2. Step 2: Convert to fraction form
    1,550,639.78/2,139,569.26 = 905,935.47/x
  3. Step 3: Cross multiply
    1,550,639.78x = 2,139,569.26 × 905,935.47
  4. Step 4: Simplify right side
    1,550,639.78x = 1,938,311,678,625.97
  5. Step 5: Solve for x
    x = 1,938,311,678,625.97/1,550,639.78
  6. Step 6: Final answer
    x = 1,250,007.71

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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.