Home / 1,431,443.73-1,975,416.90-786,891.09

Finding the Fourth Proportional to 1,431,443.73, 1,975,416.90 and 786,891.09

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Solution

The fourth proportional to 1,431,443.73, 1,975,416.90 and 786,891.09 is: 1,085,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,443.73 : 1,975,416.90 = 786,891.09 : x
  2. Step 2: Convert to fraction form
    1,431,443.73/1,975,416.90 = 786,891.09/x
  3. Step 3: Cross multiply
    1,431,443.73x = 1,975,416.90 × 786,891.09
  4. Step 4: Simplify right side
    1,431,443.73x = 1,554,437,957,645.42
  5. Step 5: Solve for x
    x = 1,554,437,957,645.42/1,431,443.73
  6. Step 6: Final answer
    x = 1,085,923.20

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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.