Home / 2,938,622.75-4,408,284.59-1,421,215.29

Finding the Fourth Proportional to 2,938,622.75, 4,408,284.59 and 1,421,215.29

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Solution

The fourth proportional to 2,938,622.75, 4,408,284.59 and 1,421,215.29 is: 2,131,992.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938,622.75 : 4,408,284.59 = 1,421,215.29 : x
  2. Step 2: Convert to fraction form
    2,938,622.75/4,408,284.59 = 1,421,215.29/x
  3. Step 3: Cross multiply
    2,938,622.75x = 4,408,284.59 × 1,421,215.29
  4. Step 4: Simplify right side
    2,938,622.75x = 6,265,121,439,708.53
  5. Step 5: Solve for x
    x = 6,265,121,439,708.53/2,938,622.75
  6. Step 6: Final answer
    x = 2,131,992.42

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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.