Home / 1,313,645.67-1,812,851.15-769,651.29

Finding the Fourth Proportional to 1,313,645.67, 1,812,851.15 and 769,651.29

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Solution

The fourth proportional to 1,313,645.67, 1,812,851.15 and 769,651.29 is: 1,062,130.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,645.67 : 1,812,851.15 = 769,651.29 : x
  2. Step 2: Convert to fraction form
    1,313,645.67/1,812,851.15 = 769,651.29/x
  3. Step 3: Cross multiply
    1,313,645.67x = 1,812,851.15 × 769,651.29
  4. Step 4: Simplify right side
    1,313,645.67x = 1,395,263,222,327.23
  5. Step 5: Solve for x
    x = 1,395,263,222,327.23/1,313,645.67
  6. Step 6: Final answer
    x = 1,062,130.57

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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.