Home / 831,685.16-1,147,738.73-469,116.22

Finding the Fourth Proportional to 831,685.16, 1,147,738.73 and 469,116.22

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Solution

The fourth proportional to 831,685.16, 1,147,738.73 and 469,116.22 is: 647,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,685.16 : 1,147,738.73 = 469,116.22 : x
  2. Step 2: Convert to fraction form
    831,685.16/1,147,738.73 = 469,116.22/x
  3. Step 3: Cross multiply
    831,685.16x = 1,147,738.73 × 469,116.22
  4. Step 4: Simplify right side
    831,685.16x = 538,422,851,628.78
  5. Step 5: Solve for x
    x = 538,422,851,628.78/831,685.16
  6. Step 6: Final answer
    x = 647,387.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.