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Finding the Fourth Proportional to 560,577.89, 773,586.70 and 305,930.90

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Solution

The fourth proportional to 560,577.89, 773,586.70 and 305,930.90 is: 422,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,577.89 : 773,586.70 = 305,930.90 : x
  2. Step 2: Convert to fraction form
    560,577.89/773,586.70 = 305,930.90/x
  3. Step 3: Cross multiply
    560,577.89x = 773,586.70 × 305,930.90
  4. Step 4: Simplify right side
    560,577.89x = 236,664,076,528.17
  5. Step 5: Solve for x
    x = 236,664,076,528.17/560,577.89
  6. Step 6: Final answer
    x = 422,178.75

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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.