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Finding the Fourth Proportional to 1,890,673.65, 2,837,172.02 and 992,759.49

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Solution

The fourth proportional to 1,890,673.65, 2,837,172.02 and 992,759.49 is: 1,489,749.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,673.65 : 2,837,172.02 = 992,759.49 : x
  2. Step 2: Convert to fraction form
    1,890,673.65/2,837,172.02 = 992,759.49/x
  3. Step 3: Cross multiply
    1,890,673.65x = 2,837,172.02 × 992,759.49
  4. Step 4: Simplify right side
    1,890,673.65x = 2,816,629,442,653.67
  5. Step 5: Solve for x
    x = 2,816,629,442,653.67/1,890,673.65
  6. Step 6: Final answer
    x = 1,489,749.14

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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.