Finding the Fourth Proportional to 2,438,379.84, 3,364,645.32 and 1,405,926.48
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Solution
The fourth proportional to 2,438,379.84, 3,364,645.32 and 1,405,926.48 is: 1,939,994.69
Step by Step Solution
- Step 1: Write the proportion equation
2,438,379.84 : 3,364,645.32 = 1,405,926.48 : x - Step 2: Convert to fraction form
2,438,379.84/3,364,645.32 = 1,405,926.48/x - Step 3: Cross multiply
2,438,379.84x = 3,364,645.32 × 1,405,926.48 - Step 4: Simplify right side
2,438,379.84x = 4,730,443,951,196.07 - Step 5: Solve for x
x = 4,730,443,951,196.07/2,438,379.84 - Step 6: Final answer
x = 1,939,994.69
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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.