Home / 854,009.19-1,280,969.91-254,975.31

Finding the Fourth Proportional to 854,009.19, 1,280,969.91 and 254,975.31

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Solution

The fourth proportional to 854,009.19, 1,280,969.91 and 254,975.31 is: 382,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,009.19 : 1,280,969.91 = 254,975.31 : x
  2. Step 2: Convert to fraction form
    854,009.19/1,280,969.91 = 254,975.31/x
  3. Step 3: Cross multiply
    854,009.19x = 1,280,969.91 × 254,975.31
  4. Step 4: Simplify right side
    854,009.19x = 326,615,699,902.92
  5. Step 5: Solve for x
    x = 326,615,699,902.92/854,009.19
  6. Step 6: Final answer
    x = 382,449.87

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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.