Finding the Fourth Proportional to 743,415.92, 1,025,918.88 and 403,884.08
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Solution
The fourth proportional to 743,415.92, 1,025,918.88 and 403,884.08 is: 557,362.70
Step by Step Solution
- Step 1: Write the proportion equation
743,415.92 : 1,025,918.88 = 403,884.08 : x - Step 2: Convert to fraction form
743,415.92/1,025,918.88 = 403,884.08/x - Step 3: Cross multiply
743,415.92x = 1,025,918.88 × 403,884.08 - Step 4: Simplify right side
743,415.92x = 414,352,303,003.43 - Step 5: Solve for x
x = 414,352,303,003.43/743,415.92 - Step 6: Final answer
x = 557,362.70
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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.