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Finding the Fourth Proportional to 560,485.97, 773,487.73 and 318,803.37

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Solution

The fourth proportional to 560,485.97, 773,487.73 and 318,803.37 is: 439,958.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,485.97 : 773,487.73 = 318,803.37 : x
  2. Step 2: Convert to fraction form
    560,485.97/773,487.73 = 318,803.37/x
  3. Step 3: Cross multiply
    560,485.97x = 773,487.73 × 318,803.37
  4. Step 4: Simplify right side
    560,485.97x = 246,590,494,977.65
  5. Step 5: Solve for x
    x = 246,590,494,977.65/560,485.97
  6. Step 6: Final answer
    x = 439,958.37

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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.