Home / 685,307.12-1,027,369.44-329,832.08

Finding the Fourth Proportional to 685,307.12, 1,027,369.44 and 329,832.08

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Solution

The fourth proportional to 685,307.12, 1,027,369.44 and 329,832.08 is: 494,463.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,307.12 : 1,027,369.44 = 329,832.08 : x
  2. Step 2: Convert to fraction form
    685,307.12/1,027,369.44 = 329,832.08/x
  3. Step 3: Cross multiply
    685,307.12x = 1,027,369.44 × 329,832.08
  4. Step 4: Simplify right side
    685,307.12x = 338,859,399,323.64
  5. Step 5: Solve for x
    x = 338,859,399,323.64/685,307.12
  6. Step 6: Final answer
    x = 494,463.56

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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.