Home / 1,361,280.42-1,879,375.64-1,209,944.88

Finding the Fourth Proportional to 1,361,280.42, 1,879,375.64 and 1,209,944.88

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Solution

The fourth proportional to 1,361,280.42, 1,879,375.64 and 1,209,944.88 is: 1,670,442.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,280.42 : 1,879,375.64 = 1,209,944.88 : x
  2. Step 2: Convert to fraction form
    1,361,280.42/1,879,375.64 = 1,209,944.88/x
  3. Step 3: Cross multiply
    1,361,280.42x = 1,879,375.64 × 1,209,944.88
  4. Step 4: Simplify right side
    1,361,280.42x = 2,273,940,927,165.00
  5. Step 5: Solve for x
    x = 2,273,940,927,165.00/1,361,280.42
  6. Step 6: Final answer
    x = 1,670,442.69

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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.