Home / 405,865.49-560,056.22-274,776.48

Finding the Fourth Proportional to 405,865.49, 560,056.22 and 274,776.48

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Solution

The fourth proportional to 405,865.49, 560,056.22 and 274,776.48 is: 379,165.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,865.49 : 560,056.22 = 274,776.48 : x
  2. Step 2: Convert to fraction form
    405,865.49/560,056.22 = 274,776.48/x
  3. Step 3: Cross multiply
    405,865.49x = 560,056.22 × 274,776.48
  4. Step 4: Simplify right side
    405,865.49x = 153,890,276,360.70
  5. Step 5: Solve for x
    x = 153,890,276,360.70/405,865.49
  6. Step 6: Final answer
    x = 379,165.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.