Home / 1,320,046.56-1,821,653.52-716,434.56

Finding the Fourth Proportional to 1,320,046.56, 1,821,653.52 and 716,434.56

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Solution

The fourth proportional to 1,320,046.56, 1,821,653.52 and 716,434.56 is: 988,673.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,046.56 : 1,821,653.52 = 716,434.56 : x
  2. Step 2: Convert to fraction form
    1,320,046.56/1,821,653.52 = 716,434.56/x
  3. Step 3: Cross multiply
    1,320,046.56x = 1,821,653.52 × 716,434.56
  4. Step 4: Simplify right side
    1,320,046.56x = 1,305,095,538,073.65
  5. Step 5: Solve for x
    x = 1,305,095,538,073.65/1,320,046.56
  6. Step 6: Final answer
    x = 988,673.87

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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.