Home / 3,312,976.69-4,969,575.87-916,620.72

Finding the Fourth Proportional to 3,312,976.69, 4,969,575.87 and 916,620.72

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Solution

The fourth proportional to 3,312,976.69, 4,969,575.87 and 916,620.72 is: 1,374,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312,976.69 : 4,969,575.87 = 916,620.72 : x
  2. Step 2: Convert to fraction form
    3,312,976.69/4,969,575.87 = 916,620.72/x
  3. Step 3: Cross multiply
    3,312,976.69x = 4,969,575.87 × 916,620.72
  4. Step 4: Simplify right side
    3,312,976.69x = 4,555,216,212,054.03
  5. Step 5: Solve for x
    x = 4,555,216,212,054.03/3,312,976.69
  6. Step 6: Final answer
    x = 1,374,961.75

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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.