Home / 1,212,912.90-1,819,369.35-360,015.30

Finding the Fourth Proportional to 1,212,912.90, 1,819,369.35 and 360,015.30

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Solution

The fourth proportional to 1,212,912.90, 1,819,369.35 and 360,015.30 is: 540,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,912.90 : 1,819,369.35 = 360,015.30 : x
  2. Step 2: Convert to fraction form
    1,212,912.90/1,819,369.35 = 360,015.30/x
  3. Step 3: Cross multiply
    1,212,912.90x = 1,819,369.35 × 360,015.30
  4. Step 4: Simplify right side
    1,212,912.90x = 655,000,802,351.06
  5. Step 5: Solve for x
    x = 655,000,802,351.06/1,212,912.90
  6. Step 6: Final answer
    x = 540,022.95

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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.