Home / 1,915,047.44-2,642,783.24-1,055,638.40

Finding the Fourth Proportional to 1,915,047.44, 2,642,783.24 and 1,055,638.40

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Solution

The fourth proportional to 1,915,047.44, 2,642,783.24 and 1,055,638.40 is: 1,456,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,047.44 : 2,642,783.24 = 1,055,638.40 : x
  2. Step 2: Convert to fraction form
    1,915,047.44/2,642,783.24 = 1,055,638.40/x
  3. Step 3: Cross multiply
    1,915,047.44x = 2,642,783.24 × 1,055,638.40
  4. Step 4: Simplify right side
    1,915,047.44x = 2,789,823,471,020.42
  5. Step 5: Solve for x
    x = 2,789,823,471,020.42/1,915,047.44
  6. Step 6: Final answer
    x = 1,456,790.79

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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.