Home / 1,084,945.09-1,627,688.25-765,720.49

Finding the Fourth Proportional to 1,084,945.09, 1,627,688.25 and 765,720.49

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Solution

The fourth proportional to 1,084,945.09, 1,627,688.25 and 765,720.49 is: 1,148,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084,945.09 : 1,627,688.25 = 765,720.49 : x
  2. Step 2: Convert to fraction form
    1,084,945.09/1,627,688.25 = 765,720.49/x
  3. Step 3: Cross multiply
    1,084,945.09x = 1,627,688.25 × 765,720.49
  4. Step 4: Simplify right side
    1,084,945.09x = 1,246,354,241,724.65
  5. Step 5: Solve for x
    x = 1,246,354,241,724.65/1,084,945.09
  6. Step 6: Final answer
    x = 1,148,771.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.