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Finding the Fourth Proportional to 667,096.98, 920,576.78 and 372,749.06

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Solution

The fourth proportional to 667,096.98, 920,576.78 and 372,749.06 is: 514,384.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,096.98 : 920,576.78 = 372,749.06 : x
  2. Step 2: Convert to fraction form
    667,096.98/920,576.78 = 372,749.06/x
  3. Step 3: Cross multiply
    667,096.98x = 920,576.78 × 372,749.06
  4. Step 4: Simplify right side
    667,096.98x = 343,144,124,799.94
  5. Step 5: Solve for x
    x = 343,144,124,799.94/667,096.98
  6. Step 6: Final answer
    x = 514,384.17

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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.