Home / 4,120,376.40-6,181,504.20-1,280,775.60

Finding the Fourth Proportional to 4,120,376.40, 6,181,504.20 and 1,280,775.60

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Solution

The fourth proportional to 4,120,376.40, 6,181,504.20 and 1,280,775.60 is: 1,921,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120,376.40 : 6,181,504.20 = 1,280,775.60 : x
  2. Step 2: Convert to fraction form
    4,120,376.40/6,181,504.20 = 1,280,775.60/x
  3. Step 3: Cross multiply
    4,120,376.40x = 6,181,504.20 × 1,280,775.60
  4. Step 4: Simplify right side
    4,120,376.40x = 7,917,119,750,657.52
  5. Step 5: Solve for x
    x = 7,917,119,750,657.52/4,120,376.40
  6. Step 6: Final answer
    x = 1,921,455.46

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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.