Finding the Fourth Proportional to 1,685,471.70, 2,528,207.55 and 1,118,601.30
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Solution
The fourth proportional to 1,685,471.70, 2,528,207.55 and 1,118,601.30 is: 1,677,901.95
Step by Step Solution
- Step 1: Write the proportion equation
1,685,471.70 : 2,528,207.55 = 1,118,601.30 : x - Step 2: Convert to fraction form
1,685,471.70/2,528,207.55 = 1,118,601.30/x - Step 3: Cross multiply
1,685,471.70x = 2,528,207.55 × 1,118,601.30 - Step 4: Simplify right side
1,685,471.70x = 2,828,056,252,099.82 - Step 5: Solve for x
x = 2,828,056,252,099.82/1,685,471.70 - Step 6: Final answer
x = 1,677,901.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.