Home / 853,957.43-1,280,915.72-277,579.98

Finding the Fourth Proportional to 853,957.43, 1,280,915.72 and 277,579.98

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Solution

The fourth proportional to 853,957.43, 1,280,915.72 and 277,579.98 is: 416,363.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,957.43 : 1,280,915.72 = 277,579.98 : x
  2. Step 2: Convert to fraction form
    853,957.43/1,280,915.72 = 277,579.98/x
  3. Step 3: Cross multiply
    853,957.43x = 1,280,915.72 × 277,579.98
  4. Step 4: Simplify right side
    853,957.43x = 355,556,559,939.29
  5. Step 5: Solve for x
    x = 355,556,559,939.29/853,957.43
  6. Step 6: Final answer
    x = 416,363.33

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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.