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Finding the Fourth Proportional to 1,259,941.92, 1,738,867.36 and 716,159.36

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Solution

The fourth proportional to 1,259,941.92, 1,738,867.36 and 716,159.36 is: 988,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,941.92 : 1,738,867.36 = 716,159.36 : x
  2. Step 2: Convert to fraction form
    1,259,941.92/1,738,867.36 = 716,159.36/x
  3. Step 3: Cross multiply
    1,259,941.92x = 1,738,867.36 × 716,159.36
  4. Step 4: Simplify right side
    1,259,941.92x = 1,245,306,135,662.49
  5. Step 5: Solve for x
    x = 1,245,306,135,662.49/1,259,941.92
  6. Step 6: Final answer
    x = 988,383.76

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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.