Finding the Fourth Proportional to 5,257,437.20, 7,885,572.60 and 1,471,302.80
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Solution
The fourth proportional to 5,257,437.20, 7,885,572.60 and 1,471,302.80 is: 2,206,790.99
Step by Step Solution
- Step 1: Write the proportion equation
5,257,437.20 : 7,885,572.60 = 1,471,302.80 : x - Step 2: Convert to fraction form
5,257,437.20/7,885,572.60 = 1,471,302.80/x - Step 3: Cross multiply
5,257,437.20x = 7,885,572.60 × 1,471,302.80 - Step 4: Simplify right side
5,257,437.20x = 11,602,065,045,983.28 - Step 5: Solve for x
x = 11,602,065,045,983.28/5,257,437.20 - Step 6: Final answer
x = 2,206,790.99
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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.