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Finding the Fourth Proportional to 618,956.48, 854,311.88 and 377,372.26

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Solution

The fourth proportional to 618,956.48, 854,311.88 and 377,372.26 is: 520,866.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,956.48 : 854,311.88 = 377,372.26 : x
  2. Step 2: Convert to fraction form
    618,956.48/854,311.88 = 377,372.26/x
  3. Step 3: Cross multiply
    618,956.48x = 854,311.88 × 377,372.26
  4. Step 4: Simplify right side
    618,956.48x = 322,393,603,708.10
  5. Step 5: Solve for x
    x = 322,393,603,708.10/618,956.48
  6. Step 6: Final answer
    x = 520,866.35

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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.