Home / 1,314,212.80-1,970,858.40-682,916.80

Finding the Fourth Proportional to 1,314,212.80, 1,970,858.40 and 682,916.80

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Solution

The fourth proportional to 1,314,212.80, 1,970,858.40 and 682,916.80 is: 1,024,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,212.80 : 1,970,858.40 = 682,916.80 : x
  2. Step 2: Convert to fraction form
    1,314,212.80/1,970,858.40 = 682,916.80/x
  3. Step 3: Cross multiply
    1,314,212.80x = 1,970,858.40 × 682,916.80
  4. Step 4: Simplify right side
    1,314,212.80x = 1,345,932,311,781.12
  5. Step 5: Solve for x
    x = 1,345,932,311,781.12/1,314,212.80
  6. Step 6: Final answer
    x = 1,024,135.75

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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.