Home / 727,860.79-1,004,447.94-422,114.54

Finding the Fourth Proportional to 727,860.79, 1,004,447.94 and 422,114.54

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Solution

The fourth proportional to 727,860.79, 1,004,447.94 and 422,114.54 is: 582,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,860.79 : 1,004,447.94 = 422,114.54 : x
  2. Step 2: Convert to fraction form
    727,860.79/1,004,447.94 = 422,114.54/x
  3. Step 3: Cross multiply
    727,860.79x = 1,004,447.94 × 422,114.54
  4. Step 4: Simplify right side
    727,860.79x = 423,992,081,566.29
  5. Step 5: Solve for x
    x = 423,992,081,566.29/727,860.79
  6. Step 6: Final answer
    x = 582,518.10

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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.