Home / 1,431,611.26-1,975,661.25-787,047.68

Finding the Fourth Proportional to 1,431,611.26, 1,975,661.25 and 787,047.68

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Solution

The fourth proportional to 1,431,611.26, 1,975,661.25 and 787,047.68 is: 1,086,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,611.26 : 1,975,661.25 = 787,047.68 : x
  2. Step 2: Convert to fraction form
    1,431,611.26/1,975,661.25 = 787,047.68/x
  3. Step 3: Cross multiply
    1,431,611.26x = 1,975,661.25 × 787,047.68
  4. Step 4: Simplify right side
    1,431,611.26x = 1,554,939,608,217.55
  5. Step 5: Solve for x
    x = 1,554,939,608,217.55/1,431,611.26
  6. Step 6: Final answer
    x = 1,086,146.54

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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.