Home / 853,893.36-1,280,913-254,815.92

Finding the Fourth Proportional to 853,893.36, 1,280,913 and 254,815.92

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Solution

The fourth proportional to 853,893.36, 1,280,913 and 254,815.92 is: 382,245.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,893.36 : 1,280,913 = 254,815.92 : x
  2. Step 2: Convert to fraction form
    853,893.36/1,280,913 = 254,815.92/x
  3. Step 3: Cross multiply
    853,893.36x = 1,280,913 × 254,815.92
  4. Step 4: Simplify right side
    853,893.36x = 326,397,024,534.96
  5. Step 5: Solve for x
    x = 326,397,024,534.96/853,893.36
  6. Step 6: Final answer
    x = 382,245.65

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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.