Home / 4,118,679.60-6,178,019.40-1,279,078.80

Finding the Fourth Proportional to 4,118,679.60, 6,178,019.40 and 1,279,078.80

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Solution

The fourth proportional to 4,118,679.60, 6,178,019.40 and 1,279,078.80 is: 1,918,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118,679.60 : 6,178,019.40 = 1,279,078.80 : x
  2. Step 2: Convert to fraction form
    4,118,679.60/6,178,019.40 = 1,279,078.80/x
  3. Step 3: Cross multiply
    4,118,679.60x = 6,178,019.40 × 1,279,078.80
  4. Step 4: Simplify right side
    4,118,679.60x = 7,902,173,640,528.72
  5. Step 5: Solve for x
    x = 7,902,173,640,528.72/4,118,679.60
  6. Step 6: Final answer
    x = 1,918,618.20

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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.