Finding the Fourth Proportional to 442,855.60, 664,283.40 and 440,231.20
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Solution
The fourth proportional to 442,855.60, 664,283.40 and 440,231.20 is: 660,346.80
Step by Step Solution
- Step 1: Write the proportion equation
442,855.60 : 664,283.40 = 440,231.20 : x - Step 2: Convert to fraction form
442,855.60/664,283.40 = 440,231.20/x - Step 3: Cross multiply
442,855.60x = 664,283.40 × 440,231.20 - Step 4: Simplify right side
442,855.60x = 292,438,278,322.08 - Step 5: Solve for x
x = 292,438,278,322.08/442,855.60 - Step 6: Final answer
x = 660,346.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.