Home / 769,805.18-1,154,571.69-208,883.42

Finding the Fourth Proportional to 769,805.18, 1,154,571.69 and 208,883.42

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Solution

The fourth proportional to 769,805.18, 1,154,571.69 and 208,883.42 is: 313,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,805.18 : 1,154,571.69 = 208,883.42 : x
  2. Step 2: Convert to fraction form
    769,805.18/1,154,571.69 = 208,883.42/x
  3. Step 3: Cross multiply
    769,805.18x = 1,154,571.69 × 208,883.42
  4. Step 4: Simplify right side
    769,805.18x = 241,170,883,242.38
  5. Step 5: Solve for x
    x = 241,170,883,242.38/769,805.18
  6. Step 6: Final answer
    x = 313,288.21

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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.