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Finding the Fourth Proportional to 594.34, 820.13 and 345.67

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Solution

The fourth proportional to 594.34, 820.13 and 345.67 is: 476.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.34 : 820.13 = 345.67 : x
  2. Step 2: Convert to fraction form
    594.34/820.13 = 345.67/x
  3. Step 3: Cross multiply
    594.34x = 820.13 × 345.67
  4. Step 4: Simplify right side
    594.34x = 283,490.56
  5. Step 5: Solve for x
    x = 283,490.56/594.34
  6. Step 6: Final answer
    x = 476.99

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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.