Finding the Fourth Proportional to 1,555,962.18, 2,146,020.48 and 1,381,715.70
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Solution
The fourth proportional to 1,555,962.18, 2,146,020.48 and 1,381,715.70 is: 1,905,695.54
Step by Step Solution
- Step 1: Write the proportion equation
1,555,962.18 : 2,146,020.48 = 1,381,715.70 : x - Step 2: Convert to fraction form
1,555,962.18/2,146,020.48 = 1,381,715.70/x - Step 3: Cross multiply
1,555,962.18x = 2,146,020.48 × 1,381,715.70 - Step 4: Simplify right side
1,555,962.18x = 2,965,190,189,737.54 - Step 5: Solve for x
x = 2,965,190,189,737.54/1,555,962.18 - Step 6: Final answer
x = 1,905,695.54
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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.