Home / 452,511.09-678,766.04-115,551.57

Finding the Fourth Proportional to 452,511.09, 678,766.04 and 115,551.57

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Solution

The fourth proportional to 452,511.09, 678,766.04 and 115,551.57 is: 173,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,511.09 : 678,766.04 = 115,551.57 : x
  2. Step 2: Convert to fraction form
    452,511.09/678,766.04 = 115,551.57/x
  3. Step 3: Cross multiply
    452,511.09x = 678,766.04 × 115,551.57
  4. Step 4: Simplify right side
    452,511.09x = 78,432,481,751.60
  5. Step 5: Solve for x
    x = 78,432,481,751.60/452,511.09
  6. Step 6: Final answer
    x = 173,327.20

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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.