Home / 3,105,669.50-4,285,918.50-1,691,285.78

Finding the Fourth Proportional to 3,105,669.50, 4,285,918.50 and 1,691,285.78

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Solution

The fourth proportional to 3,105,669.50, 4,285,918.50 and 1,691,285.78 is: 2,334,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105,669.50 : 4,285,918.50 = 1,691,285.78 : x
  2. Step 2: Convert to fraction form
    3,105,669.50/4,285,918.50 = 1,691,285.78/x
  3. Step 3: Cross multiply
    3,105,669.50x = 4,285,918.50 × 1,691,285.78
  4. Step 4: Simplify right side
    3,105,669.50x = 7,248,713,013,288.93
  5. Step 5: Solve for x
    x = 7,248,713,013,288.93/3,105,669.50
  6. Step 6: Final answer
    x = 2,334,025.89

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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.