Home / 1,431,371.82-1,975,270.98-786,778.17

Finding the Fourth Proportional to 1,431,371.82, 1,975,270.98 and 786,778.17

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Solution

The fourth proportional to 1,431,371.82, 1,975,270.98 and 786,778.17 is: 1,085,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,371.82 : 1,975,270.98 = 786,778.17 : x
  2. Step 2: Convert to fraction form
    1,431,371.82/1,975,270.98 = 786,778.17/x
  3. Step 3: Cross multiply
    1,431,371.82x = 1,975,270.98 × 786,778.17
  4. Step 4: Simplify right side
    1,431,371.82x = 1,554,100,078,016.03
  5. Step 5: Solve for x
    x = 1,554,100,078,016.03/1,431,371.82
  6. Step 6: Final answer
    x = 1,085,741.70

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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.