Finding the Fourth Proportional to 396,726.13, 547,486.02 and 215,439.62
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Solution
The fourth proportional to 396,726.13, 547,486.02 and 215,439.62 is: 297,308.83
Step by Step Solution
- Step 1: Write the proportion equation
396,726.13 : 547,486.02 = 215,439.62 : x - Step 2: Convert to fraction form
396,726.13/547,486.02 = 215,439.62/x - Step 3: Cross multiply
396,726.13x = 547,486.02 × 215,439.62 - Step 4: Simplify right side
396,726.13x = 117,950,180,104.11 - Step 5: Solve for x
x = 117,950,180,104.11/396,726.13 - Step 6: Final answer
x = 297,308.83
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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.