Home / 1,212,912.24-1,819,368.36-680,807.04

Finding the Fourth Proportional to 1,212,912.24, 1,819,368.36 and 680,807.04

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Solution

The fourth proportional to 1,212,912.24, 1,819,368.36 and 680,807.04 is: 1,021,210.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,912.24 : 1,819,368.36 = 680,807.04 : x
  2. Step 2: Convert to fraction form
    1,212,912.24/1,819,368.36 = 680,807.04/x
  3. Step 3: Cross multiply
    1,212,912.24x = 1,819,368.36 × 680,807.04
  4. Step 4: Simplify right side
    1,212,912.24x = 1,238,638,787,841.25
  5. Step 5: Solve for x
    x = 1,238,638,787,841.25/1,212,912.24
  6. Step 6: Final answer
    x = 1,021,210.56

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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.