Home / 2,115,215.58-2,919,457.71-1,299,846.90

Finding the Fourth Proportional to 2,115,215.58, 2,919,457.71 and 1,299,846.90

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Solution

The fourth proportional to 2,115,215.58, 2,919,457.71 and 1,299,846.90 is: 1,794,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,215.58 : 2,919,457.71 = 1,299,846.90 : x
  2. Step 2: Convert to fraction form
    2,115,215.58/2,919,457.71 = 1,299,846.90/x
  3. Step 3: Cross multiply
    2,115,215.58x = 2,919,457.71 × 1,299,846.90
  4. Step 4: Simplify right side
    2,115,215.58x = 3,794,848,054,024.60
  5. Step 5: Solve for x
    x = 3,794,848,054,024.60/2,115,215.58
  6. Step 6: Final answer
    x = 1,794,071.53

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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.