Home / 1,230,086.78-1,845,119.19-388,638.50

Finding the Fourth Proportional to 1,230,086.78, 1,845,119.19 and 388,638.50

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Solution

The fourth proportional to 1,230,086.78, 1,845,119.19 and 388,638.50 is: 582,954.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,086.78 : 1,845,119.19 = 388,638.50 : x
  2. Step 2: Convert to fraction form
    1,230,086.78/1,845,119.19 = 388,638.50/x
  3. Step 3: Cross multiply
    1,230,086.78x = 1,845,119.19 × 388,638.50
  4. Step 4: Simplify right side
    1,230,086.78x = 717,084,354,322.82
  5. Step 5: Solve for x
    x = 717,084,354,322.82/1,230,086.78
  6. Step 6: Final answer
    x = 582,954.28

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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.