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Finding the Fourth Proportional to 618,603.30, 854,083.80 and 475,106.94

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Solution

The fourth proportional to 618,603.30, 854,083.80 and 475,106.94 is: 655,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,603.30 : 854,083.80 = 475,106.94 : x
  2. Step 2: Convert to fraction form
    618,603.30/854,083.80 = 475,106.94/x
  3. Step 3: Cross multiply
    618,603.30x = 854,083.80 × 475,106.94
  4. Step 4: Simplify right side
    618,603.30x = 405,781,140,721.57
  5. Step 5: Solve for x
    x = 405,781,140,721.57/618,603.30
  6. Step 6: Final answer
    x = 655,963.43

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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.