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Finding the Fourth Proportional to 452,603.05, 678,904.47 and 115,644.33

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Solution

The fourth proportional to 452,603.05, 678,904.47 and 115,644.33 is: 173,466.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,603.05 : 678,904.47 = 115,644.33 : x
  2. Step 2: Convert to fraction form
    452,603.05/678,904.47 = 115,644.33/x
  3. Step 3: Cross multiply
    452,603.05x = 678,904.47 × 115,644.33
  4. Step 4: Simplify right side
    452,603.05x = 78,511,452,567.16
  5. Step 5: Solve for x
    x = 78,511,452,567.16/452,603.05
  6. Step 6: Final answer
    x = 173,466.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.