Home / 727,809.56-1,004,381.31-422,067.47

Finding the Fourth Proportional to 727,809.56, 1,004,381.31 and 422,067.47

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Solution

The fourth proportional to 727,809.56, 1,004,381.31 and 422,067.47 is: 582,455.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,809.56 : 1,004,381.31 = 422,067.47 : x
  2. Step 2: Convert to fraction form
    727,809.56/1,004,381.31 = 422,067.47/x
  3. Step 3: Cross multiply
    727,809.56x = 1,004,381.31 × 422,067.47
  4. Step 4: Simplify right side
    727,809.56x = 423,916,680,071.45
  5. Step 5: Solve for x
    x = 423,916,680,071.45/727,809.56
  6. Step 6: Final answer
    x = 582,455.50

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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.