Home / 3,122,729-4,309,368.90-1,691,945

Finding the Fourth Proportional to 3,122,729, 4,309,368.90 and 1,691,945

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Solution

The fourth proportional to 3,122,729, 4,309,368.90 and 1,691,945 is: 2,334,885.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122,729 : 4,309,368.90 = 1,691,945 : x
  2. Step 2: Convert to fraction form
    3,122,729/4,309,368.90 = 1,691,945/x
  3. Step 3: Cross multiply
    3,122,729x = 4,309,368.90 × 1,691,945
  4. Step 4: Simplify right side
    3,122,729x = 7,291,215,163,510.50
  5. Step 5: Solve for x
    x = 7,291,215,163,510.50/3,122,729
  6. Step 6: Final answer
    x = 2,334,885.66

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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.