Home / 2,118,208.40-2,923,056.06-1,212,615.44

Finding the Fourth Proportional to 2,118,208.40, 2,923,056.06 and 1,212,615.44

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Solution

The fourth proportional to 2,118,208.40, 2,923,056.06 and 1,212,615.44 is: 1,673,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,208.40 : 2,923,056.06 = 1,212,615.44 : x
  2. Step 2: Convert to fraction form
    2,118,208.40/2,923,056.06 = 1,212,615.44/x
  3. Step 3: Cross multiply
    2,118,208.40x = 2,923,056.06 × 1,212,615.44
  4. Step 4: Simplify right side
    2,118,208.40x = 3,544,542,913,101.90
  5. Step 5: Solve for x
    x = 3,544,542,913,101.90/2,118,208.40
  6. Step 6: Final answer
    x = 1,673,368.36

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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.