Home / 722,143.26-1,083,417.30-290,164.05

Finding the Fourth Proportional to 722,143.26, 1,083,417.30 and 290,164.05

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Solution

The fourth proportional to 722,143.26, 1,083,417.30 and 290,164.05 is: 435,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,143.26 : 1,083,417.30 = 290,164.05 : x
  2. Step 2: Convert to fraction form
    722,143.26/1,083,417.30 = 290,164.05/x
  3. Step 3: Cross multiply
    722,143.26x = 1,083,417.30 × 290,164.05
  4. Step 4: Simplify right side
    722,143.26x = 314,368,751,608.07
  5. Step 5: Solve for x
    x = 314,368,751,608.07/722,143.26
  6. Step 6: Final answer
    x = 435,327.41

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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.