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Finding the Fourth Proportional to 455,862.80, 682,810.05 and 396,813.80

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Solution

The fourth proportional to 455,862.80, 682,810.05 and 396,813.80 is: 594,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,862.80 : 682,810.05 = 396,813.80 : x
  2. Step 2: Convert to fraction form
    455,862.80/682,810.05 = 396,813.80/x
  3. Step 3: Cross multiply
    455,862.80x = 682,810.05 × 396,813.80
  4. Step 4: Simplify right side
    455,862.80x = 270,948,450,618.69
  5. Step 5: Solve for x
    x = 270,948,450,618.69/455,862.80
  6. Step 6: Final answer
    x = 594,364.03

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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.