Home / 3,422,340.86-5,138,557.80-1,908,980.60

Finding the Fourth Proportional to 3,422,340.86, 5,138,557.80 and 1,908,980.60

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Solution

The fourth proportional to 3,422,340.86, 5,138,557.80 and 1,908,980.60 is: 2,866,285.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422,340.86 : 5,138,557.80 = 1,908,980.60 : x
  2. Step 2: Convert to fraction form
    3,422,340.86/5,138,557.80 = 1,908,980.60/x
  3. Step 3: Cross multiply
    3,422,340.86x = 5,138,557.80 × 1,908,980.60
  4. Step 4: Simplify right side
    3,422,340.86x = 9,809,407,152,178.68
  5. Step 5: Solve for x
    x = 9,809,407,152,178.68/3,422,340.86
  6. Step 6: Final answer
    x = 2,866,285.84

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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.