Finding the Fourth Proportional to 777,285.36, 1,166,266.88 and 272,208.66
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Solution
The fourth proportional to 777,285.36, 1,166,266.88 and 272,208.66 is: 408,431.65
Step by Step Solution
- Step 1: Write the proportion equation
777,285.36 : 1,166,266.88 = 272,208.66 : x - Step 2: Convert to fraction form
777,285.36/1,166,266.88 = 272,208.66/x - Step 3: Cross multiply
777,285.36x = 1,166,266.88 × 272,208.66 - Step 4: Simplify right side
777,285.36x = 317,467,944,607.18 - Step 5: Solve for x
x = 317,467,944,607.18/777,285.36 - Step 6: Final answer
x = 408,431.65
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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.