Home / 415,621.26-622,411.29-265,418.10

Finding the Fourth Proportional to 415,621.26, 622,411.29 and 265,418.10

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Solution

The fourth proportional to 415,621.26, 622,411.29 and 265,418.10 is: 397,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,621.26 : 622,411.29 = 265,418.10 : x
  2. Step 2: Convert to fraction form
    415,621.26/622,411.29 = 265,418.10/x
  3. Step 3: Cross multiply
    415,621.26x = 622,411.29 × 265,418.10
  4. Step 4: Simplify right side
    415,621.26x = 165,199,222,010.35
  5. Step 5: Solve for x
    x = 165,199,222,010.35/415,621.26
  6. Step 6: Final answer
    x = 397,475.39

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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.