Home / 770,267.86-1,155,506.87-320,883.57

Finding the Fourth Proportional to 770,267.86, 1,155,506.87 and 320,883.57

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Solution

The fourth proportional to 770,267.86, 1,155,506.87 and 320,883.57 is: 481,369.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,267.86 : 1,155,506.87 = 320,883.57 : x
  2. Step 2: Convert to fraction form
    770,267.86/1,155,506.87 = 320,883.57/x
  3. Step 3: Cross multiply
    770,267.86x = 1,155,506.87 × 320,883.57
  4. Step 4: Simplify right side
    770,267.86x = 370,783,170,407.34
  5. Step 5: Solve for x
    x = 370,783,170,407.34/770,267.86
  6. Step 6: Final answer
    x = 481,369.13

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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.