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Finding the Fourth Proportional to 618,583.40, 854,056.26 and 475,087

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Solution

The fourth proportional to 618,583.40, 854,056.26 and 475,087 is: 655,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,583.40 : 854,056.26 = 475,087 : x
  2. Step 2: Convert to fraction form
    618,583.40/854,056.26 = 475,087/x
  3. Step 3: Cross multiply
    618,583.40x = 854,056.26 × 475,087
  4. Step 4: Simplify right side
    618,583.40x = 405,751,026,394.62
  5. Step 5: Solve for x
    x = 405,751,026,394.62/618,583.40
  6. Step 6: Final answer
    x = 655,935.85

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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.