Finding the Fourth Proportional to 405,867.13, 560,058.48 and 274,778.10
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Solution
The fourth proportional to 405,867.13, 560,058.48 and 274,778.10 is: 379,167.95
Step by Step Solution
- Step 1: Write the proportion equation
405,867.13 : 560,058.48 = 274,778.10 : x - Step 2: Convert to fraction form
405,867.13/560,058.48 = 274,778.10/x - Step 3: Cross multiply
405,867.13x = 560,058.48 × 274,778.10 - Step 4: Simplify right side
405,867.13x = 153,891,805,023.29 - Step 5: Solve for x
x = 153,891,805,023.29/405,867.13 - Step 6: Final answer
x = 379,167.95
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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.