Home / 858,003.54-1,287,344.30-325,665.87

Finding the Fourth Proportional to 858,003.54, 1,287,344.30 and 325,665.87

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Solution

The fourth proportional to 858,003.54, 1,287,344.30 and 325,665.87 is: 488,627.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,003.54 : 1,287,344.30 = 325,665.87 : x
  2. Step 2: Convert to fraction form
    858,003.54/1,287,344.30 = 325,665.87/x
  3. Step 3: Cross multiply
    858,003.54x = 1,287,344.30 × 325,665.87
  4. Step 4: Simplify right side
    858,003.54x = 419,244,099,820.71
  5. Step 5: Solve for x
    x = 419,244,099,820.71/858,003.54
  6. Step 6: Final answer
    x = 488,627.47

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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.