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Finding the Fourth Proportional to 618,845.50, 854,006.79 and 350,573.50

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Solution

The fourth proportional to 618,845.50, 854,006.79 and 350,573.50 is: 483,791.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,845.50 : 854,006.79 = 350,573.50 : x
  2. Step 2: Convert to fraction form
    618,845.50/854,006.79 = 350,573.50/x
  3. Step 3: Cross multiply
    618,845.50x = 854,006.79 × 350,573.50
  4. Step 4: Simplify right side
    618,845.50x = 299,392,149,394.07
  5. Step 5: Solve for x
    x = 299,392,149,394.07/618,845.50
  6. Step 6: Final answer
    x = 483,791.43

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1.5x scale

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.