Finding the Fourth Proportional to 3,531,865.70, 5,298,187.35 and 1,288,489.70
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Solution
The fourth proportional to 3,531,865.70, 5,298,187.35 and 1,288,489.70 is: 1,932,876.39
Step by Step Solution
- Step 1: Write the proportion equation
3,531,865.70 : 5,298,187.35 = 1,288,489.70 : x - Step 2: Convert to fraction form
3,531,865.70/5,298,187.35 = 1,288,489.70/x - Step 3: Cross multiply
3,531,865.70x = 5,298,187.35 × 1,288,489.70 - Step 4: Simplify right side
3,531,865.70x = 6,826,659,829,145.29 - Step 5: Solve for x
x = 6,826,659,829,145.29/3,531,865.70 - Step 6: Final answer
x = 1,932,876.39
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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.