Finding the Fourth Proportional to 1,676,577.84, 2,313,728.46 and 1,187,423.70
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Solution
The fourth proportional to 1,676,577.84, 2,313,728.46 and 1,187,423.70 is: 1,638,680.86
Step by Step Solution
- Step 1: Write the proportion equation
1,676,577.84 : 2,313,728.46 = 1,187,423.70 : x - Step 2: Convert to fraction form
1,676,577.84/2,313,728.46 = 1,187,423.70/x - Step 3: Cross multiply
1,676,577.84x = 2,313,728.46 × 1,187,423.70 - Step 4: Simplify right side
1,676,577.84x = 2,747,376,008,768.50 - Step 5: Solve for x
x = 2,747,376,008,768.50/1,676,577.84 - Step 6: Final answer
x = 1,638,680.86
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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.