Home / 838,428.44-1,257,643.23-269,809.42

Finding the Fourth Proportional to 838,428.44, 1,257,643.23 and 269,809.42

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Solution

The fourth proportional to 838,428.44, 1,257,643.23 and 269,809.42 is: 404,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,428.44 : 1,257,643.23 = 269,809.42 : x
  2. Step 2: Convert to fraction form
    838,428.44/1,257,643.23 = 269,809.42/x
  3. Step 3: Cross multiply
    838,428.44x = 1,257,643.23 × 269,809.42
  4. Step 4: Simplify right side
    838,428.44x = 339,323,993,142.64
  5. Step 5: Solve for x
    x = 339,323,993,142.64/838,428.44
  6. Step 6: Final answer
    x = 404,714.32

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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.