Home / 1,431,909-1,975,983.84-787,324.68

Finding the Fourth Proportional to 1,431,909, 1,975,983.84 and 787,324.68

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Solution

The fourth proportional to 1,431,909, 1,975,983.84 and 787,324.68 is: 1,086,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,909 : 1,975,983.84 = 787,324.68 : x
  2. Step 2: Convert to fraction form
    1,431,909/1,975,983.84 = 787,324.68/x
  3. Step 3: Cross multiply
    1,431,909x = 1,975,983.84 × 787,324.68
  4. Step 4: Simplify right side
    1,431,909x = 1,555,740,844,513.17
  5. Step 5: Solve for x
    x = 1,555,740,844,513.17/1,431,909
  6. Step 6: Final answer
    x = 1,086,480.25

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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.