Finding the Fourth Proportional to 1,971,043.20, 2,951,035.20 and 1,915,747.20
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Solution
The fourth proportional to 1,971,043.20, 2,951,035.20 and 1,915,747.20 is: 2,868,246.33
Step by Step Solution
- Step 1: Write the proportion equation
1,971,043.20 : 2,951,035.20 = 1,915,747.20 : x - Step 2: Convert to fraction form
1,971,043.20/2,951,035.20 = 1,915,747.20/x - Step 3: Cross multiply
1,971,043.20x = 2,951,035.20 × 1,915,747.20 - Step 4: Simplify right side
1,971,043.20x = 5,653,437,421,501.44 - Step 5: Solve for x
x = 5,653,437,421,501.44/1,971,043.20 - Step 6: Final answer
x = 2,868,246.33
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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.