Home / 2,803,999.90-4,205,999.85-2,786,285.20

Finding the Fourth Proportional to 2,803,999.90, 4,205,999.85 and 2,786,285.20

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Solution

The fourth proportional to 2,803,999.90, 4,205,999.85 and 2,786,285.20 is: 4,179,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803,999.90 : 4,205,999.85 = 2,786,285.20 : x
  2. Step 2: Convert to fraction form
    2,803,999.90/4,205,999.85 = 2,786,285.20/x
  3. Step 3: Cross multiply
    2,803,999.90x = 4,205,999.85 × 2,786,285.20
  4. Step 4: Simplify right side
    2,803,999.90x = 11,719,115,133,257.22
  5. Step 5: Solve for x
    x = 11,719,115,133,257.22/2,803,999.90
  6. Step 6: Final answer
    x = 4,179,427.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.