Home / 853,416.32-1,280,108.64-254,783.36

Finding the Fourth Proportional to 853,416.32, 1,280,108.64 and 254,783.36

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Solution

The fourth proportional to 853,416.32, 1,280,108.64 and 254,783.36 is: 382,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,416.32 : 1,280,108.64 = 254,783.36 : x
  2. Step 2: Convert to fraction form
    853,416.32/1,280,108.64 = 254,783.36/x
  3. Step 3: Cross multiply
    853,416.32x = 1,280,108.64 × 254,783.36
  4. Step 4: Simplify right side
    853,416.32x = 326,150,380,464.23
  5. Step 5: Solve for x
    x = 326,150,380,464.23/853,416.32
  6. Step 6: Final answer
    x = 382,170.31

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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.