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Finding the Fourth Proportional to 560,615.63, 773,638.76 and 305,968.64

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Solution

The fourth proportional to 560,615.63, 773,638.76 and 305,968.64 is: 422,230.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,615.63 : 773,638.76 = 305,968.64 : x
  2. Step 2: Convert to fraction form
    560,615.63/773,638.76 = 305,968.64/x
  3. Step 3: Cross multiply
    560,615.63x = 773,638.76 × 305,968.64
  4. Step 4: Simplify right side
    560,615.63x = 236,709,193,850.45
  5. Step 5: Solve for x
    x = 236,709,193,850.45/560,615.63
  6. Step 6: Final answer
    x = 422,230.82

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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.