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Finding the Fourth Proportional to 508,676.75, 702,047.01 and 304,736.37

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Solution

The fourth proportional to 508,676.75, 702,047.01 and 304,736.37 is: 420,579.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,676.75 : 702,047.01 = 304,736.37 : x
  2. Step 2: Convert to fraction form
    508,676.75/702,047.01 = 304,736.37/x
  3. Step 3: Cross multiply
    508,676.75x = 702,047.01 × 304,736.37
  4. Step 4: Simplify right side
    508,676.75x = 213,939,257,396.75
  5. Step 5: Solve for x
    x = 213,939,257,396.75/508,676.75
  6. Step 6: Final answer
    x = 420,579.98

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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.