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Finding the Fourth Proportional to 560,321.37, 773,245.31 and 305,677.89

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Solution

The fourth proportional to 560,321.37, 773,245.31 and 305,677.89 is: 421,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,321.37 : 773,245.31 = 305,677.89 : x
  2. Step 2: Convert to fraction form
    560,321.37/773,245.31 = 305,677.89/x
  3. Step 3: Cross multiply
    560,321.37x = 773,245.31 × 305,677.89
  4. Step 4: Simplify right side
    560,321.37x = 236,363,993,284.81
  5. Step 5: Solve for x
    x = 236,363,993,284.81/560,321.37
  6. Step 6: Final answer
    x = 421,836.48

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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.