Home / 769,805.15-1,154,571.64-208,883.39

Finding the Fourth Proportional to 769,805.15, 1,154,571.64 and 208,883.39

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Solution

The fourth proportional to 769,805.15, 1,154,571.64 and 208,883.39 is: 313,288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,805.15 : 1,154,571.64 = 208,883.39 : x
  2. Step 2: Convert to fraction form
    769,805.15/1,154,571.64 = 208,883.39/x
  3. Step 3: Cross multiply
    769,805.15x = 1,154,571.64 × 208,883.39
  4. Step 4: Simplify right side
    769,805.15x = 241,170,837,370.61
  5. Step 5: Solve for x
    x = 241,170,837,370.61/769,805.15
  6. Step 6: Final answer
    x = 313,288.16

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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.