Home / 1,222,173.09-1,686,573.50-678,277.26

Finding the Fourth Proportional to 1,222,173.09, 1,686,573.50 and 678,277.26

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Solution

The fourth proportional to 1,222,173.09, 1,686,573.50 and 678,277.26 is: 936,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,173.09 : 1,686,573.50 = 678,277.26 : x
  2. Step 2: Convert to fraction form
    1,222,173.09/1,686,573.50 = 678,277.26/x
  3. Step 3: Cross multiply
    1,222,173.09x = 1,686,573.50 × 678,277.26
  4. Step 4: Simplify right side
    1,222,173.09x = 1,143,964,448,977.22
  5. Step 5: Solve for x
    x = 1,143,964,448,977.22/1,222,173.09
  6. Step 6: Final answer
    x = 936,008.54

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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.