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Finding the Fourth Proportional to 595.68, 821.79 and 464.46

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Solution

The fourth proportional to 595.68, 821.79 and 464.46 is: 640.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.68 : 821.79 = 464.46 : x
  2. Step 2: Convert to fraction form
    595.68/821.79 = 464.46/x
  3. Step 3: Cross multiply
    595.68x = 821.79 × 464.46
  4. Step 4: Simplify right side
    595.68x = 381,688.58
  5. Step 5: Solve for x
    x = 381,688.58/595.68
  6. Step 6: Final answer
    x = 640.76

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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.