Home / 1,362,855.12-1,879,711.56-1,282,491.60

Finding the Fourth Proportional to 1,362,855.12, 1,879,711.56 and 1,282,491.60

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Solution

The fourth proportional to 1,362,855.12, 1,879,711.56 and 1,282,491.60 is: 1,768,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,855.12 : 1,879,711.56 = 1,282,491.60 : x
  2. Step 2: Convert to fraction form
    1,362,855.12/1,879,711.56 = 1,282,491.60/x
  3. Step 3: Cross multiply
    1,362,855.12x = 1,879,711.56 × 1,282,491.60
  4. Step 4: Simplify right side
    1,362,855.12x = 2,410,714,286,122.90
  5. Step 5: Solve for x
    x = 2,410,714,286,122.90/1,362,855.12
  6. Step 6: Final answer
    x = 1,768,870.55

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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.