Finding the Fourth Proportional to 1,125,186.12, 1,552,799.70 and 641,829.96
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Solution
The fourth proportional to 1,125,186.12, 1,552,799.70 and 641,829.96 is: 885,749.79
Step by Step Solution
- Step 1: Write the proportion equation
1,125,186.12 : 1,552,799.70 = 641,829.96 : x - Step 2: Convert to fraction form
1,125,186.12/1,552,799.70 = 641,829.96/x - Step 3: Cross multiply
1,125,186.12x = 1,552,799.70 × 641,829.96 - Step 4: Simplify right side
1,125,186.12x = 996,633,369,339.01 - Step 5: Solve for x
x = 996,633,369,339.01/1,125,186.12 - Step 6: Final answer
x = 885,749.79
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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.