Home / 858,201.78-1,287,720.84-352,914.60

Finding the Fourth Proportional to 858,201.78, 1,287,720.84 and 352,914.60

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Solution

The fourth proportional to 858,201.78, 1,287,720.84 and 352,914.60 is: 529,543.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,201.78 : 1,287,720.84 = 352,914.60 : x
  2. Step 2: Convert to fraction form
    858,201.78/1,287,720.84 = 352,914.60/x
  3. Step 3: Cross multiply
    858,201.78x = 1,287,720.84 × 352,914.60
  4. Step 4: Simplify right side
    858,201.78x = 454,455,485,160.26
  5. Step 5: Solve for x
    x = 454,455,485,160.26/858,201.78
  6. Step 6: Final answer
    x = 529,543.86

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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.