Finding the Fourth Proportional to 3,219,047.79, 4,442,672.13 and 1,930,596.99
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Solution
The fourth proportional to 3,219,047.79, 4,442,672.13 and 1,930,596.99 is: 2,664,455.45
Step by Step Solution
- Step 1: Write the proportion equation
3,219,047.79 : 4,442,672.13 = 1,930,596.99 : x - Step 2: Convert to fraction form
3,219,047.79/4,442,672.13 = 1,930,596.99/x - Step 3: Cross multiply
3,219,047.79x = 4,442,672.13 × 1,930,596.99 - Step 4: Simplify right side
3,219,047.79x = 8,577,009,441,734.89 - Step 5: Solve for x
x = 8,577,009,441,734.89/3,219,047.79 - Step 6: Final answer
x = 2,664,455.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.