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Finding the Fourth Proportional to 618,996, 854,227.44 and 350,724

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Solution

The fourth proportional to 618,996, 854,227.44 and 350,724 is: 484,006.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,996 : 854,227.44 = 350,724 : x
  2. Step 2: Convert to fraction form
    618,996/854,227.44 = 350,724/x
  3. Step 3: Cross multiply
    618,996x = 854,227.44 × 350,724
  4. Step 4: Simplify right side
    618,996x = 299,598,064,666.56
  5. Step 5: Solve for x
    x = 299,598,064,666.56/618,996
  6. Step 6: Final answer
    x = 484,006.46

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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.