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Finding the Fourth Proportional to 578,311.10, 798,069.21 and 323,662.29

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Solution

The fourth proportional to 578,311.10, 798,069.21 and 323,662.29 is: 446,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,311.10 : 798,069.21 = 323,662.29 : x
  2. Step 2: Convert to fraction form
    578,311.10/798,069.21 = 323,662.29/x
  3. Step 3: Cross multiply
    578,311.10x = 798,069.21 × 323,662.29
  4. Step 4: Simplify right side
    578,311.10x = 258,304,908,087.09
  5. Step 5: Solve for x
    x = 258,304,908,087.09/578,311.10
  6. Step 6: Final answer
    x = 446,653.90

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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.