Home / 1,645,425.36-2,270,680.56-920,270.16

Finding the Fourth Proportional to 1,645,425.36, 2,270,680.56 and 920,270.16

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Solution

The fourth proportional to 1,645,425.36, 2,270,680.56 and 920,270.16 is: 1,269,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,425.36 : 2,270,680.56 = 920,270.16 : x
  2. Step 2: Convert to fraction form
    1,645,425.36/2,270,680.56 = 920,270.16/x
  3. Step 3: Cross multiply
    1,645,425.36x = 2,270,680.56 × 920,270.16
  4. Step 4: Simplify right side
    1,645,425.36x = 2,089,639,562,260.09
  5. Step 5: Solve for x
    x = 2,089,639,562,260.09/1,645,425.36
  6. Step 6: Final answer
    x = 1,269,969.22

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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.