Home / 1,289,359.80-1,934,039.70-329,813.55

Finding the Fourth Proportional to 1,289,359.80, 1,934,039.70 and 329,813.55

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Solution

The fourth proportional to 1,289,359.80, 1,934,039.70 and 329,813.55 is: 494,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,359.80 : 1,934,039.70 = 329,813.55 : x
  2. Step 2: Convert to fraction form
    1,289,359.80/1,934,039.70 = 329,813.55/x
  3. Step 3: Cross multiply
    1,289,359.80x = 1,934,039.70 × 329,813.55
  4. Step 4: Simplify right side
    1,289,359.80x = 637,872,499,297.94
  5. Step 5: Solve for x
    x = 637,872,499,297.94/1,289,359.80
  6. Step 6: Final answer
    x = 494,720.33

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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.