Finding the Fourth Proportional to 4,412,663.87, 6,619,376.70 and 1,217,789.78
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Solution
The fourth proportional to 4,412,663.87, 6,619,376.70 and 1,217,789.78 is: 1,826,789.78
Step by Step Solution
- Step 1: Write the proportion equation
4,412,663.87 : 6,619,376.70 = 1,217,789.78 : x - Step 2: Convert to fraction form
4,412,663.87/6,619,376.70 = 1,217,789.78/x - Step 3: Cross multiply
4,412,663.87x = 6,619,376.70 × 1,217,789.78 - Step 4: Simplify right side
4,412,663.87x = 8,061,009,262,133.24 - Step 5: Solve for x
x = 8,061,009,262,133.24/4,412,663.87 - Step 6: Final answer
x = 1,826,789.78
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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.