Home / 1,078,940.69-1,618,410.58-320,778.87

Finding the Fourth Proportional to 1,078,940.69, 1,618,410.58 and 320,778.87

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Solution

The fourth proportional to 1,078,940.69, 1,618,410.58 and 320,778.87 is: 481,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,940.69 : 1,618,410.58 = 320,778.87 : x
  2. Step 2: Convert to fraction form
    1,078,940.69/1,618,410.58 = 320,778.87/x
  3. Step 3: Cross multiply
    1,078,940.69x = 1,618,410.58 × 320,778.87
  4. Step 4: Simplify right side
    1,078,940.69x = 519,151,910,177.46
  5. Step 5: Solve for x
    x = 519,151,910,177.46/1,078,940.69
  6. Step 6: Final answer
    x = 481,168.16

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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.