Home / 1,431,351.06-1,975,241.70-786,757.38

Finding the Fourth Proportional to 1,431,351.06, 1,975,241.70 and 786,757.38

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Solution

The fourth proportional to 1,431,351.06, 1,975,241.70 and 786,757.38 is: 1,085,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,351.06 : 1,975,241.70 = 786,757.38 : x
  2. Step 2: Convert to fraction form
    1,431,351.06/1,975,241.70 = 786,757.38/x
  3. Step 3: Cross multiply
    1,431,351.06x = 1,975,241.70 × 786,757.38
  4. Step 4: Simplify right side
    1,431,351.06x = 1,554,035,984,758.75
  5. Step 5: Solve for x
    x = 1,554,035,984,758.75/1,431,351.06
  6. Step 6: Final answer
    x = 1,085,712.67

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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.