Finding the Fourth Proportional to 2,405,860.14, 3,320,036.19 and 1,318,078.74
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Solution
The fourth proportional to 2,405,860.14, 3,320,036.19 and 1,318,078.74 is: 1,818,920.83
Step by Step Solution
- Step 1: Write the proportion equation
2,405,860.14 : 3,320,036.19 = 1,318,078.74 : x - Step 2: Convert to fraction form
2,405,860.14/3,320,036.19 = 1,318,078.74/x - Step 3: Cross multiply
2,405,860.14x = 3,320,036.19 × 1,318,078.74 - Step 4: Simplify right side
2,405,860.14x = 4,376,069,118,069.60 - Step 5: Solve for x
x = 4,376,069,118,069.60/2,405,860.14 - Step 6: Final answer
x = 1,818,920.83
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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.