Finding the Fourth Proportional to 718,291.26, 991,256.94 and 396,014.94
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Solution
The fourth proportional to 718,291.26, 991,256.94 and 396,014.94 is: 546,508.89
Step by Step Solution
- Step 1: Write the proportion equation
718,291.26 : 991,256.94 = 396,014.94 : x - Step 2: Convert to fraction form
718,291.26/991,256.94 = 396,014.94/x - Step 3: Cross multiply
718,291.26x = 991,256.94 × 396,014.94 - Step 4: Simplify right side
718,291.26x = 392,552,557,618.68 - Step 5: Solve for x
x = 392,552,557,618.68/718,291.26 - Step 6: Final answer
x = 546,508.89
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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.