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Finding the Fourth Proportional to 608,388.98, 839,561.38 and 336,449.64

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Solution

The fourth proportional to 608,388.98, 839,561.38 and 336,449.64 is: 464,291.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,388.98 : 839,561.38 = 336,449.64 : x
  2. Step 2: Convert to fraction form
    608,388.98/839,561.38 = 336,449.64/x
  3. Step 3: Cross multiply
    608,388.98x = 839,561.38 × 336,449.64
  4. Step 4: Simplify right side
    608,388.98x = 282,470,123,217.78
  5. Step 5: Solve for x
    x = 282,470,123,217.78/608,388.98
  6. Step 6: Final answer
    x = 464,291.98

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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.