Finding the Fourth Proportional to 1,125,178.31, 1,552,755.75 and 641,767.94
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Solution
The fourth proportional to 1,125,178.31, 1,552,755.75 and 641,767.94 is: 885,645.28
Step by Step Solution
- Step 1: Write the proportion equation
1,125,178.31 : 1,552,755.75 = 641,767.94 : x - Step 2: Convert to fraction form
1,125,178.31/1,552,755.75 = 641,767.94/x - Step 3: Cross multiply
1,125,178.31x = 1,552,755.75 × 641,767.94 - Step 4: Simplify right side
1,125,178.31x = 996,508,859,000.66 - Step 5: Solve for x
x = 996,508,859,000.66/1,125,178.31 - Step 6: Final answer
x = 885,645.28
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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.