Home / 449,382.35-620,144.32-245,433.36

Finding the Fourth Proportional to 449,382.35, 620,144.32 and 245,433.36

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Solution

The fourth proportional to 449,382.35, 620,144.32 and 245,433.36 is: 338,696.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,382.35 : 620,144.32 = 245,433.36 : x
  2. Step 2: Convert to fraction form
    449,382.35/620,144.32 = 245,433.36/x
  3. Step 3: Cross multiply
    449,382.35x = 620,144.32 × 245,433.36
  4. Step 4: Simplify right side
    449,382.35x = 152,204,105,079.29
  5. Step 5: Solve for x
    x = 152,204,105,079.29/449,382.35
  6. Step 6: Final answer
    x = 338,696.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.