Finding the Fourth Proportional to 743,295.40, 1,025,709.06 and 403,763.08
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Solution
The fourth proportional to 743,295.40, 1,025,709.06 and 403,763.08 is: 557,172.09
Step by Step Solution
- Step 1: Write the proportion equation
743,295.40 : 1,025,709.06 = 403,763.08 : x - Step 2: Convert to fraction form
743,295.40/1,025,709.06 = 403,763.08/x - Step 3: Cross multiply
743,295.40x = 1,025,709.06 × 403,763.08 - Step 4: Simplify right side
743,295.40x = 414,143,449,249.51 - Step 5: Solve for x
x = 414,143,449,249.51/743,295.40 - Step 6: Final answer
x = 557,172.09
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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.