Home / 1,285,029.59-1,927,046.04-685,663.74

Finding the Fourth Proportional to 1,285,029.59, 1,927,046.04 and 685,663.74

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Solution

The fourth proportional to 1,285,029.59, 1,927,046.04 and 685,663.74 is: 1,028,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,029.59 : 1,927,046.04 = 685,663.74 : x
  2. Step 2: Convert to fraction form
    1,285,029.59/1,927,046.04 = 685,663.74/x
  3. Step 3: Cross multiply
    1,285,029.59x = 1,927,046.04 × 685,663.74
  4. Step 4: Simplify right side
    1,285,029.59x = 1,321,305,594,938.59
  5. Step 5: Solve for x
    x = 1,321,305,594,938.59/1,285,029.59
  6. Step 6: Final answer
    x = 1,028,229.71

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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.