Home / 1,431,770.10-1,975,792.22-787,185.34

Finding the Fourth Proportional to 1,431,770.10, 1,975,792.22 and 787,185.34

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Solution

The fourth proportional to 1,431,770.10, 1,975,792.22 and 787,185.34 is: 1,086,287.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,770.10 : 1,975,792.22 = 787,185.34 : x
  2. Step 2: Convert to fraction form
    1,431,770.10/1,975,792.22 = 787,185.34/x
  3. Step 3: Cross multiply
    1,431,770.10x = 1,975,792.22 × 787,185.34
  4. Step 4: Simplify right side
    1,431,770.10x = 1,555,314,670,470.05
  5. Step 5: Solve for x
    x = 1,555,314,670,470.05/1,431,770.10
  6. Step 6: Final answer
    x = 1,086,287.99

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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.