Home / 765,960.33-1,149,650.43-387,145.04

Finding the Fourth Proportional to 765,960.33, 1,149,650.43 and 387,145.04

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Solution

The fourth proportional to 765,960.33, 1,149,650.43 and 387,145.04 is: 581,076.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,960.33 : 1,149,650.43 = 387,145.04 : x
  2. Step 2: Convert to fraction form
    765,960.33/1,149,650.43 = 387,145.04/x
  3. Step 3: Cross multiply
    765,960.33x = 1,149,650.43 × 387,145.04
  4. Step 4: Simplify right side
    765,960.33x = 445,081,461,708.37
  5. Step 5: Solve for x
    x = 445,081,461,708.37/765,960.33
  6. Step 6: Final answer
    x = 581,076.39

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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.