Home / 1,285,309.26-1,926,069.39-715,906.49

Finding the Fourth Proportional to 1,285,309.26, 1,926,069.39 and 715,906.49

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Solution

The fourth proportional to 1,285,309.26, 1,926,069.39 and 715,906.49 is: 1,072,804.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,309.26 : 1,926,069.39 = 715,906.49 : x
  2. Step 2: Convert to fraction form
    1,285,309.26/1,926,069.39 = 715,906.49/x
  3. Step 3: Cross multiply
    1,285,309.26x = 1,926,069.39 × 715,906.49
  4. Step 4: Simplify right side
    1,285,309.26x = 1,378,885,576,491.34
  5. Step 5: Solve for x
    x = 1,378,885,576,491.34/1,285,309.26
  6. Step 6: Final answer
    x = 1,072,804.51

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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.