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Finding the Fourth Proportional to 618,975.24, 854,337.78 and 377,391

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Solution

The fourth proportional to 618,975.24, 854,337.78 and 377,391 is: 520,892.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,975.24 : 854,337.78 = 377,391 : x
  2. Step 2: Convert to fraction form
    618,975.24/854,337.78 = 377,391/x
  3. Step 3: Cross multiply
    618,975.24x = 854,337.78 × 377,391
  4. Step 4: Simplify right side
    618,975.24x = 322,419,389,131.98
  5. Step 5: Solve for x
    x = 322,419,389,131.98/618,975.24
  6. Step 6: Final answer
    x = 520,892.22

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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.