Home / 1,389,245.56-1,915,321.08-1,001,736.70

Finding the Fourth Proportional to 1,389,245.56, 1,915,321.08 and 1,001,736.70

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Solution

The fourth proportional to 1,389,245.56, 1,915,321.08 and 1,001,736.70 is: 1,381,071.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,245.56 : 1,915,321.08 = 1,001,736.70 : x
  2. Step 2: Convert to fraction form
    1,389,245.56/1,915,321.08 = 1,001,736.70/x
  3. Step 3: Cross multiply
    1,389,245.56x = 1,915,321.08 × 1,001,736.70
  4. Step 4: Simplify right side
    1,389,245.56x = 1,918,647,418,119.64
  5. Step 5: Solve for x
    x = 1,918,647,418,119.64/1,389,245.56
  6. Step 6: Final answer
    x = 1,381,071.48

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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.