Finding the Fourth Proportional to 2,405,835.71, 3,320,053.18 and 1,318,148.49
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Solution
The fourth proportional to 2,405,835.71, 3,320,053.18 and 1,318,148.49 is: 1,819,044.86
Step by Step Solution
- Step 1: Write the proportion equation
2,405,835.71 : 3,320,053.18 = 1,318,148.49 : x - Step 2: Convert to fraction form
2,405,835.71/3,320,053.18 = 1,318,148.49/x - Step 3: Cross multiply
2,405,835.71x = 3,320,053.18 × 1,318,148.49 - Step 4: Simplify right side
2,405,835.71x = 4,376,323,082,641.33 - Step 5: Solve for x
x = 4,376,323,082,641.33/2,405,835.71 - Step 6: Final answer
x = 1,819,044.86
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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.