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Finding the Fourth Proportional to 618,960.48, 854,317.41 and 377,376.27

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Solution

The fourth proportional to 618,960.48, 854,317.41 and 377,376.27 is: 520,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,960.48 : 854,317.41 = 377,376.27 : x
  2. Step 2: Convert to fraction form
    618,960.48/854,317.41 = 377,376.27/x
  3. Step 3: Cross multiply
    618,960.48x = 854,317.41 × 377,376.27
  4. Step 4: Simplify right side
    618,960.48x = 322,399,117,581.86
  5. Step 5: Solve for x
    x = 322,399,117,581.86/618,960.48
  6. Step 6: Final answer
    x = 520,871.89

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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.