Home / 858,266.06-1,287,519.42-259,159.28

Finding the Fourth Proportional to 858,266.06, 1,287,519.42 and 259,159.28

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Solution

The fourth proportional to 858,266.06, 1,287,519.42 and 259,159.28 is: 388,775.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,266.06 : 1,287,519.42 = 259,159.28 : x
  2. Step 2: Convert to fraction form
    858,266.06/1,287,519.42 = 259,159.28/x
  3. Step 3: Cross multiply
    858,266.06x = 1,287,519.42 × 259,159.28
  4. Step 4: Simplify right side
    858,266.06x = 333,672,605,873.22
  5. Step 5: Solve for x
    x = 333,672,605,873.22/858,266.06
  6. Step 6: Final answer
    x = 388,775.25

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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.