Finding the Fourth Proportional to 665,968.09, 918,724.30 and 436,464.31
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Solution
The fourth proportional to 665,968.09, 918,724.30 and 436,464.31 is: 602,116.49
Step by Step Solution
- Step 1: Write the proportion equation
665,968.09 : 918,724.30 = 436,464.31 : x - Step 2: Convert to fraction form
665,968.09/918,724.30 = 436,464.31/x - Step 3: Cross multiply
665,968.09x = 918,724.30 × 436,464.31 - Step 4: Simplify right side
665,968.09x = 400,990,367,679.73 - Step 5: Solve for x
x = 400,990,367,679.73/665,968.09 - Step 6: Final answer
x = 602,116.49
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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.