Home / 1,289,908.80-1,934,365.32-425,136.06

Finding the Fourth Proportional to 1,289,908.80, 1,934,365.32 and 425,136.06

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Solution

The fourth proportional to 1,289,908.80, 1,934,365.32 and 425,136.06 is: 637,540.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,908.80 : 1,934,365.32 = 425,136.06 : x
  2. Step 2: Convert to fraction form
    1,289,908.80/1,934,365.32 = 425,136.06/x
  3. Step 3: Cross multiply
    1,289,908.80x = 1,934,365.32 × 425,136.06
  4. Step 4: Simplify right side
    1,289,908.80x = 822,368,450,745.44
  5. Step 5: Solve for x
    x = 822,368,450,745.44/1,289,908.80
  6. Step 6: Final answer
    x = 637,540.00

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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.