Home / 1,131,244.62-1,561,123.44-621,979.80

Finding the Fourth Proportional to 1,131,244.62, 1,561,123.44 and 621,979.80

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Solution

The fourth proportional to 1,131,244.62, 1,561,123.44 and 621,979.80 is: 858,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,244.62 : 1,561,123.44 = 621,979.80 : x
  2. Step 2: Convert to fraction form
    1,131,244.62/1,561,123.44 = 621,979.80/x
  3. Step 3: Cross multiply
    1,131,244.62x = 1,561,123.44 × 621,979.80
  4. Step 4: Simplify right side
    1,131,244.62x = 970,987,244,986.51
  5. Step 5: Solve for x
    x = 970,987,244,986.51/1,131,244.62
  6. Step 6: Final answer
    x = 858,335.35

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1.5x scale

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.