Finding the Fourth Proportional to 1,127,013.75, 1,555,278.98 and 617,705.19
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Solution
The fourth proportional to 1,127,013.75, 1,555,278.98 and 617,705.19 is: 852,433.16
Step by Step Solution
- Step 1: Write the proportion equation
1,127,013.75 : 1,555,278.98 = 617,705.19 : x - Step 2: Convert to fraction form
1,127,013.75/1,555,278.98 = 617,705.19/x - Step 3: Cross multiply
1,127,013.75x = 1,555,278.98 × 617,705.19 - Step 4: Simplify right side
1,127,013.75x = 960,703,894,755.38 - Step 5: Solve for x
x = 960,703,894,755.38/1,127,013.75 - Step 6: Final answer
x = 852,433.16
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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.