Home / 1,424,427.09-1,965,896.58-812,439.57

Finding the Fourth Proportional to 1,424,427.09, 1,965,896.58 and 812,439.57

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Solution

The fourth proportional to 1,424,427.09, 1,965,896.58 and 812,439.57 is: 1,121,273.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,427.09 : 1,965,896.58 = 812,439.57 : x
  2. Step 2: Convert to fraction form
    1,424,427.09/1,965,896.58 = 812,439.57/x
  3. Step 3: Cross multiply
    1,424,427.09x = 1,965,896.58 × 812,439.57
  4. Step 4: Simplify right side
    1,424,427.09x = 1,597,172,172,119.67
  5. Step 5: Solve for x
    x = 1,597,172,172,119.67/1,424,427.09
  6. Step 6: Final answer
    x = 1,121,273.38

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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.