Home / 1,939,296.74-2,907,971.89-1,129,942.71

Finding the Fourth Proportional to 1,939,296.74, 2,907,971.89 and 1,129,942.71

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Solution

The fourth proportional to 1,939,296.74, 2,907,971.89 and 1,129,942.71 is: 1,694,347.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,296.74 : 2,907,971.89 = 1,129,942.71 : x
  2. Step 2: Convert to fraction form
    1,939,296.74/2,907,971.89 = 1,129,942.71/x
  3. Step 3: Cross multiply
    1,939,296.74x = 2,907,971.89 × 1,129,942.71
  4. Step 4: Simplify right side
    1,939,296.74x = 3,285,841,635,165.57
  5. Step 5: Solve for x
    x = 3,285,841,635,165.57/1,939,296.74
  6. Step 6: Final answer
    x = 1,694,347.02

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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.