Finding the Fourth Proportional to 905,743.44, 1,247,765.64 and 633,301.56
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Solution
The fourth proportional to 905,743.44, 1,247,765.64 and 633,301.56 is: 872,445.65
Step by Step Solution
- Step 1: Write the proportion equation
905,743.44 : 1,247,765.64 = 633,301.56 : x - Step 2: Convert to fraction form
905,743.44/1,247,765.64 = 633,301.56/x - Step 3: Cross multiply
905,743.44x = 1,247,765.64 × 633,301.56 - Step 4: Simplify right side
905,743.44x = 790,211,926,326.40 - Step 5: Solve for x
x = 790,211,926,326.40/905,743.44 - Step 6: Final answer
x = 872,445.65
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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.