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Finding the Fourth Proportional to 618,855.50, 854,020.60 and 350,583.50

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Solution

The fourth proportional to 618,855.50, 854,020.60 and 350,583.50 is: 483,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,855.50 : 854,020.60 = 350,583.50 : x
  2. Step 2: Convert to fraction form
    618,855.50/854,020.60 = 350,583.50/x
  3. Step 3: Cross multiply
    618,855.50x = 854,020.60 × 350,583.50
  4. Step 4: Simplify right side
    618,855.50x = 299,405,531,020.10
  5. Step 5: Solve for x
    x = 299,405,531,020.10/618,855.50
  6. Step 6: Final answer
    x = 483,805.24

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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.