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Finding the Fourth Proportional to 439,732.80, 617,025.60 and 439,732.80

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Solution

The fourth proportional to 439,732.80, 617,025.60 and 439,732.80 is: 617,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,732.80 : 617,025.60 = 439,732.80 : x
  2. Step 2: Convert to fraction form
    439,732.80/617,025.60 = 439,732.80/x
  3. Step 3: Cross multiply
    439,732.80x = 617,025.60 × 439,732.80
  4. Step 4: Simplify right side
    439,732.80x = 271,326,394,759.68
  5. Step 5: Solve for x
    x = 271,326,394,759.68/439,732.80
  6. Step 6: Final answer
    x = 617,025.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.