Home / 1,292,391.45-1,783,667.79-741,322.53

Finding the Fourth Proportional to 1,292,391.45, 1,783,667.79 and 741,322.53

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Solution

The fourth proportional to 1,292,391.45, 1,783,667.79 and 741,322.53 is: 1,023,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,391.45 : 1,783,667.79 = 741,322.53 : x
  2. Step 2: Convert to fraction form
    1,292,391.45/1,783,667.79 = 741,322.53/x
  3. Step 3: Cross multiply
    1,292,391.45x = 1,783,667.79 × 741,322.53
  4. Step 4: Simplify right side
    1,292,391.45x = 1,322,273,118,762.31
  5. Step 5: Solve for x
    x = 1,322,273,118,762.31/1,292,391.45
  6. Step 6: Final answer
    x = 1,023,121.22

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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.