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Finding the Fourth Proportional to 439,730.80, 617,022.80 and 439,730.80

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Solution

The fourth proportional to 439,730.80, 617,022.80 and 439,730.80 is: 617,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,730.80 : 617,022.80 = 439,730.80 : x
  2. Step 2: Convert to fraction form
    439,730.80/617,022.80 = 439,730.80/x
  3. Step 3: Cross multiply
    439,730.80x = 617,022.80 × 439,730.80
  4. Step 4: Simplify right side
    439,730.80x = 271,323,929,462.24
  5. Step 5: Solve for x
    x = 271,323,929,462.24/439,730.80
  6. Step 6: Final answer
    x = 617,022.80

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