Home / 2,005,721.70-2,766,478.77-1,242,021.30

Finding the Fourth Proportional to 2,005,721.70, 2,766,478.77 and 1,242,021.30

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Solution

The fourth proportional to 2,005,721.70, 2,766,478.77 and 1,242,021.30 is: 1,713,111.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005,721.70 : 2,766,478.77 = 1,242,021.30 : x
  2. Step 2: Convert to fraction form
    2,005,721.70/2,766,478.77 = 1,242,021.30/x
  3. Step 3: Cross multiply
    2,005,721.70x = 2,766,478.77 × 1,242,021.30
  4. Step 4: Simplify right side
    2,005,721.70x = 3,436,025,558,337.80
  5. Step 5: Solve for x
    x = 3,436,025,558,337.80/2,005,721.70
  6. Step 6: Final answer
    x = 1,713,111.82

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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.