Finding the Fourth Proportional to 1,252,749.48, 1,728,799.05 and 679,789.63
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Solution
The fourth proportional to 1,252,749.48, 1,728,799.05 and 679,789.63 is: 938,112.28
Step by Step Solution
- Step 1: Write the proportion equation
1,252,749.48 : 1,728,799.05 = 679,789.63 : x - Step 2: Convert to fraction form
1,252,749.48/1,728,799.05 = 679,789.63/x - Step 3: Cross multiply
1,252,749.48x = 1,728,799.05 × 679,789.63 - Step 4: Simplify right side
1,252,749.48x = 1,175,219,666,543.85 - Step 5: Solve for x
x = 1,175,219,666,543.85/1,252,749.48 - Step 6: Final answer
x = 938,112.28
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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.