Home / 3,121,208.55-4,680,840.83-1,228,530.15

Finding the Fourth Proportional to 3,121,208.55, 4,680,840.83 and 1,228,530.15

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Solution

The fourth proportional to 3,121,208.55, 4,680,840.83 and 1,228,530.15 is: 1,842,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,208.55 : 4,680,840.83 = 1,228,530.15 : x
  2. Step 2: Convert to fraction form
    3,121,208.55/4,680,840.83 = 1,228,530.15/x
  3. Step 3: Cross multiply
    3,121,208.55x = 4,680,840.83 × 1,228,530.15
  4. Step 4: Simplify right side
    3,121,208.55x = 5,750,554,080,863.37
  5. Step 5: Solve for x
    x = 5,750,554,080,863.37/3,121,208.55
  6. Step 6: Final answer
    x = 1,842,412.64

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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.