Home / 853,209.75-1,280,025.13-254,168.58

Finding the Fourth Proportional to 853,209.75, 1,280,025.13 and 254,168.58

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Solution

The fourth proportional to 853,209.75, 1,280,025.13 and 254,168.58 is: 381,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,209.75 : 1,280,025.13 = 254,168.58 : x
  2. Step 2: Convert to fraction form
    853,209.75/1,280,025.13 = 254,168.58/x
  3. Step 3: Cross multiply
    853,209.75x = 1,280,025.13 × 254,168.58
  4. Step 4: Simplify right side
    853,209.75x = 325,342,169,020.99
  5. Step 5: Solve for x
    x = 325,342,169,020.99/853,209.75
  6. Step 6: Final answer
    x = 381,315.58

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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.