Home / 1,308,402.90-1,805,331.06-764,433.54

Finding the Fourth Proportional to 1,308,402.90, 1,805,331.06 and 764,433.54

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Solution

The fourth proportional to 1,308,402.90, 1,805,331.06 and 764,433.54 is: 1,054,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,402.90 : 1,805,331.06 = 764,433.54 : x
  2. Step 2: Convert to fraction form
    1,308,402.90/1,805,331.06 = 764,433.54/x
  3. Step 3: Cross multiply
    1,308,402.90x = 1,805,331.06 × 764,433.54
  4. Step 4: Simplify right side
    1,308,402.90x = 1,380,055,613,067.75
  5. Step 5: Solve for x
    x = 1,380,055,613,067.75/1,308,402.90
  6. Step 6: Final answer
    x = 1,054,763.49

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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.