Home / 1,372,292.92-1,891,399.89-912,585.82

Finding the Fourth Proportional to 1,372,292.92, 1,891,399.89 and 912,585.82

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Solution

The fourth proportional to 1,372,292.92, 1,891,399.89 and 912,585.82 is: 1,257,796.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,292.92 : 1,891,399.89 = 912,585.82 : x
  2. Step 2: Convert to fraction form
    1,372,292.92/1,891,399.89 = 912,585.82/x
  3. Step 3: Cross multiply
    1,372,292.92x = 1,891,399.89 × 912,585.82
  4. Step 4: Simplify right side
    1,372,292.92x = 1,726,064,719,563.56
  5. Step 5: Solve for x
    x = 1,726,064,719,563.56/1,372,292.92
  6. Step 6: Final answer
    x = 1,257,796.13

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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.