Home / 1,368,361.29-1,888,025.38-816,969.89

Finding the Fourth Proportional to 1,368,361.29, 1,888,025.38 and 816,969.89

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Solution

The fourth proportional to 1,368,361.29, 1,888,025.38 and 816,969.89 is: 1,127,231.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,361.29 : 1,888,025.38 = 816,969.89 : x
  2. Step 2: Convert to fraction form
    1,368,361.29/1,888,025.38 = 816,969.89/x
  3. Step 3: Cross multiply
    1,368,361.29x = 1,888,025.38 × 816,969.89
  4. Step 4: Simplify right side
    1,368,361.29x = 1,542,459,887,015.81
  5. Step 5: Solve for x
    x = 1,542,459,887,015.81/1,368,361.29
  6. Step 6: Final answer
    x = 1,127,231.45

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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.