Home / 858,070.56-1,287,273.60-259,080.48

Finding the Fourth Proportional to 858,070.56, 1,287,273.60 and 259,080.48

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Solution

The fourth proportional to 858,070.56, 1,287,273.60 and 259,080.48 is: 388,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,070.56 : 1,287,273.60 = 259,080.48 : x
  2. Step 2: Convert to fraction form
    858,070.56/1,287,273.60 = 259,080.48/x
  3. Step 3: Cross multiply
    858,070.56x = 1,287,273.60 × 259,080.48
  4. Step 4: Simplify right side
    858,070.56x = 333,507,462,179.33
  5. Step 5: Solve for x
    x = 333,507,462,179.33/858,070.56
  6. Step 6: Final answer
    x = 388,671.37

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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.