Home / 1,078,988.20-1,618,698.30-320,828.20

Finding the Fourth Proportional to 1,078,988.20, 1,618,698.30 and 320,828.20

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Solution

The fourth proportional to 1,078,988.20, 1,618,698.30 and 320,828.20 is: 481,306.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,988.20 : 1,618,698.30 = 320,828.20 : x
  2. Step 2: Convert to fraction form
    1,078,988.20/1,618,698.30 = 320,828.20/x
  3. Step 3: Cross multiply
    1,078,988.20x = 1,618,698.30 × 320,828.20
  4. Step 4: Simplify right side
    1,078,988.20x = 519,324,061,932.06
  5. Step 5: Solve for x
    x = 519,324,061,932.06/1,078,988.20
  6. Step 6: Final answer
    x = 481,306.53

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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.