Home / 1,431,854.82-1,975,906.53-787,236.66

Finding the Fourth Proportional to 1,431,854.82, 1,975,906.53 and 787,236.66

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Solution

The fourth proportional to 1,431,854.82, 1,975,906.53 and 787,236.66 is: 1,086,357.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,854.82 : 1,975,906.53 = 787,236.66 : x
  2. Step 2: Convert to fraction form
    1,431,854.82/1,975,906.53 = 787,236.66/x
  3. Step 3: Cross multiply
    1,431,854.82x = 1,975,906.53 × 787,236.66
  4. Step 4: Simplify right side
    1,431,854.82x = 1,555,506,057,149.39
  5. Step 5: Solve for x
    x = 1,555,506,057,149.39/1,431,854.82
  6. Step 6: Final answer
    x = 1,086,357.38

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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.