Home / 1,538,949.42-2,123,745.75-859,886.46

Finding the Fourth Proportional to 1,538,949.42, 2,123,745.75 and 859,886.46

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Solution

The fourth proportional to 1,538,949.42, 2,123,745.75 and 859,886.46 is: 1,186,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,949.42 : 2,123,745.75 = 859,886.46 : x
  2. Step 2: Convert to fraction form
    1,538,949.42/2,123,745.75 = 859,886.46/x
  3. Step 3: Cross multiply
    1,538,949.42x = 2,123,745.75 × 859,886.46
  4. Step 4: Simplify right side
    1,538,949.42x = 1,826,180,214,907.55
  5. Step 5: Solve for x
    x = 1,826,180,214,907.55/1,538,949.42
  6. Step 6: Final answer
    x = 1,186,640.83

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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.