Home / 1,399,327.14-2,099,140.56-388,453.32

Finding the Fourth Proportional to 1,399,327.14, 2,099,140.56 and 388,453.32

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Solution

The fourth proportional to 1,399,327.14, 2,099,140.56 and 388,453.32 is: 582,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,327.14 : 2,099,140.56 = 388,453.32 : x
  2. Step 2: Convert to fraction form
    1,399,327.14/2,099,140.56 = 388,453.32/x
  3. Step 3: Cross multiply
    1,399,327.14x = 2,099,140.56 × 388,453.32
  4. Step 4: Simplify right side
    1,399,327.14x = 815,418,119,678.66
  5. Step 5: Solve for x
    x = 815,418,119,678.66/1,399,327.14
  6. Step 6: Final answer
    x = 582,721.58

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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.