Finding the Fourth Proportional to 718,294.26, 991,261.08 and 396,017.94
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Solution
The fourth proportional to 718,294.26, 991,261.08 and 396,017.94 is: 546,513.03
Step by Step Solution
- Step 1: Write the proportion equation
718,294.26 : 991,261.08 = 396,017.94 : x - Step 2: Convert to fraction form
718,294.26/991,261.08 = 396,017.94/x - Step 3: Cross multiply
718,294.26x = 991,261.08 × 396,017.94 - Step 4: Simplify right side
718,294.26x = 392,557,170,903.78 - Step 5: Solve for x
x = 392,557,170,903.78/718,294.26 - Step 6: Final answer
x = 546,513.03
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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.