Finding the Fourth Proportional to 741,680.65, 1,023,539.37 and 419,438.75
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Solution
The fourth proportional to 741,680.65, 1,023,539.37 and 419,438.75 is: 578,836.83
Step by Step Solution
- Step 1: Write the proportion equation
741,680.65 : 1,023,539.37 = 419,438.75 : x - Step 2: Convert to fraction form
741,680.65/1,023,539.37 = 419,438.75/x - Step 3: Cross multiply
741,680.65x = 1,023,539.37 × 419,438.75 - Step 4: Simplify right side
741,680.65x = 429,312,073,928.59 - Step 5: Solve for x
x = 429,312,073,928.59/741,680.65 - Step 6: Final answer
x = 578,836.83
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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.