Home / 2,168,712.72-2,992,943.40-1,201,822.80

Finding the Fourth Proportional to 2,168,712.72, 2,992,943.40 and 1,201,822.80

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Solution

The fourth proportional to 2,168,712.72, 2,992,943.40 and 1,201,822.80 is: 1,658,581.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,712.72 : 2,992,943.40 = 1,201,822.80 : x
  2. Step 2: Convert to fraction form
    2,168,712.72/2,992,943.40 = 1,201,822.80/x
  3. Step 3: Cross multiply
    2,168,712.72x = 2,992,943.40 × 1,201,822.80
  4. Step 4: Simplify right side
    2,168,712.72x = 3,596,987,617,229.52
  5. Step 5: Solve for x
    x = 3,596,987,617,229.52/2,168,712.72
  6. Step 6: Final answer
    x = 1,658,581.88

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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.