Home / 1,395,377.14-1,928,263.72-1,188,616.54

Finding the Fourth Proportional to 1,395,377.14, 1,928,263.72 and 1,188,616.54

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Solution

The fourth proportional to 1,395,377.14, 1,928,263.72 and 1,188,616.54 is: 1,642,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,377.14 : 1,928,263.72 = 1,188,616.54 : x
  2. Step 2: Convert to fraction form
    1,395,377.14/1,928,263.72 = 1,188,616.54/x
  3. Step 3: Cross multiply
    1,395,377.14x = 1,928,263.72 × 1,188,616.54
  4. Step 4: Simplify right side
    1,395,377.14x = 2,291,966,151,073.93
  5. Step 5: Solve for x
    x = 2,291,966,151,073.93/1,395,377.14
  6. Step 6: Final answer
    x = 1,642,542.42

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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.