Home / 1,431,636.41-1,975,659.51-787,067.57

Finding the Fourth Proportional to 1,431,636.41, 1,975,659.51 and 787,067.57

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Solution

The fourth proportional to 1,431,636.41, 1,975,659.51 and 787,067.57 is: 1,086,153.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,636.41 : 1,975,659.51 = 787,067.57 : x
  2. Step 2: Convert to fraction form
    1,431,636.41/1,975,659.51 = 787,067.57/x
  3. Step 3: Cross multiply
    1,431,636.41x = 1,975,659.51 × 787,067.57
  4. Step 4: Simplify right side
    1,431,636.41x = 1,554,977,519,804.79
  5. Step 5: Solve for x
    x = 1,554,977,519,804.79/1,431,636.41
  6. Step 6: Final answer
    x = 1,086,153.94

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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.