Home / 2,072,778.72-2,860,638.64-1,213,286.88

Finding the Fourth Proportional to 2,072,778.72, 2,860,638.64 and 1,213,286.88

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Solution

The fourth proportional to 2,072,778.72, 2,860,638.64 and 1,213,286.88 is: 1,674,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072,778.72 : 2,860,638.64 = 1,213,286.88 : x
  2. Step 2: Convert to fraction form
    2,072,778.72/2,860,638.64 = 1,213,286.88/x
  3. Step 3: Cross multiply
    2,072,778.72x = 2,860,638.64 × 1,213,286.88
  4. Step 4: Simplify right side
    2,072,778.72x = 3,470,775,330,333.04
  5. Step 5: Solve for x
    x = 3,470,775,330,333.04/2,072,778.72
  6. Step 6: Final answer
    x = 1,674,455.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.