Home / 768,539.70-1,152,809.55-269,903.70

Finding the Fourth Proportional to 768,539.70, 1,152,809.55 and 269,903.70

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Solution

The fourth proportional to 768,539.70, 1,152,809.55 and 269,903.70 is: 404,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,539.70 : 1,152,809.55 = 269,903.70 : x
  2. Step 2: Convert to fraction form
    768,539.70/1,152,809.55 = 269,903.70/x
  3. Step 3: Cross multiply
    768,539.70x = 1,152,809.55 × 269,903.70
  4. Step 4: Simplify right side
    768,539.70x = 311,147,562,940.34
  5. Step 5: Solve for x
    x = 311,147,562,940.34/768,539.70
  6. Step 6: Final answer
    x = 404,855.55

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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.