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Finding the Fourth Proportional to 618,960.24, 854,317.08 and 377,376.03

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Solution

The fourth proportional to 618,960.24, 854,317.08 and 377,376.03 is: 520,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,960.24 : 854,317.08 = 377,376.03 : x
  2. Step 2: Convert to fraction form
    618,960.24/854,317.08 = 377,376.03/x
  3. Step 3: Cross multiply
    618,960.24x = 854,317.08 × 377,376.03
  4. Step 4: Simplify right side
    618,960.24x = 322,398,788,011.59
  5. Step 5: Solve for x
    x = 322,398,788,011.59/618,960.24
  6. Step 6: Final answer
    x = 520,871.56

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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.