Home / 768,705.69-1,152,940.33-256,379.83

Finding the Fourth Proportional to 768,705.69, 1,152,940.33 and 256,379.83

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Solution

The fourth proportional to 768,705.69, 1,152,940.33 and 256,379.83 is: 384,530.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,705.69 : 1,152,940.33 = 256,379.83 : x
  2. Step 2: Convert to fraction form
    768,705.69/1,152,940.33 = 256,379.83/x
  3. Step 3: Cross multiply
    768,705.69x = 1,152,940.33 × 256,379.83
  4. Step 4: Simplify right side
    768,705.69x = 295,590,647,567.19
  5. Step 5: Solve for x
    x = 295,590,647,567.19/768,705.69
  6. Step 6: Final answer
    x = 384,530.33

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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.