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Finding the Fourth Proportional to 455,865.30, 682,813.80 and 377,133.30

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Solution

The fourth proportional to 455,865.30, 682,813.80 and 377,133.30 is: 564,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,865.30 : 682,813.80 = 377,133.30 : x
  2. Step 2: Convert to fraction form
    455,865.30/682,813.80 = 377,133.30/x
  3. Step 3: Cross multiply
    455,865.30x = 682,813.80 × 377,133.30
  4. Step 4: Simplify right side
    455,865.30x = 257,511,821,679.54
  5. Step 5: Solve for x
    x = 257,511,821,679.54/455,865.30
  6. Step 6: Final answer
    x = 564,885.77

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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.