Finding the Fourth Proportional to 782,538.79, 1,079,884.04 and 438,372.44
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Solution
The fourth proportional to 782,538.79, 1,079,884.04 and 438,372.44 is: 604,943.05
Step by Step Solution
- Step 1: Write the proportion equation
782,538.79 : 1,079,884.04 = 438,372.44 : x - Step 2: Convert to fraction form
782,538.79/1,079,884.04 = 438,372.44/x - Step 3: Cross multiply
782,538.79x = 1,079,884.04 × 438,372.44 - Step 4: Simplify right side
782,538.79x = 473,391,396,132.44 - Step 5: Solve for x
x = 473,391,396,132.44/782,538.79 - Step 6: Final answer
x = 604,943.05
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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.