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Finding the Fourth Proportional to 618,847.50, 854,009.55 and 350,575.50

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Solution

The fourth proportional to 618,847.50, 854,009.55 and 350,575.50 is: 483,794.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,847.50 : 854,009.55 = 350,575.50 : x
  2. Step 2: Convert to fraction form
    618,847.50/854,009.55 = 350,575.50/x
  3. Step 3: Cross multiply
    618,847.50x = 854,009.55 × 350,575.50
  4. Step 4: Simplify right side
    618,847.50x = 299,394,824,996.03
  5. Step 5: Solve for x
    x = 299,394,824,996.03/618,847.50
  6. Step 6: Final answer
    x = 483,794.19

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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.