Home / 722,643.96-1,083,881.49-290,343.90

Finding the Fourth Proportional to 722,643.96, 1,083,881.49 and 290,343.90

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Solution

The fourth proportional to 722,643.96, 1,083,881.49 and 290,343.90 is: 435,481.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,643.96 : 1,083,881.49 = 290,343.90 : x
  2. Step 2: Convert to fraction form
    722,643.96/1,083,881.49 = 290,343.90/x
  3. Step 3: Cross multiply
    722,643.96x = 1,083,881.49 × 290,343.90
  4. Step 4: Simplify right side
    722,643.96x = 314,698,381,321.54
  5. Step 5: Solve for x
    x = 314,698,381,321.54/722,643.96
  6. Step 6: Final answer
    x = 435,481.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.