Finding the Fourth Proportional to 451,331.19, 622,905.66 and 288,058.23
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Solution
The fourth proportional to 451,331.19, 622,905.66 and 288,058.23 is: 397,564.15
Step by Step Solution
- Step 1: Write the proportion equation
451,331.19 : 622,905.66 = 288,058.23 : x - Step 2: Convert to fraction form
451,331.19/622,905.66 = 288,058.23/x - Step 3: Cross multiply
451,331.19x = 622,905.66 × 288,058.23 - Step 4: Simplify right side
451,331.19x = 179,433,101,876.58 - Step 5: Solve for x
x = 179,433,101,876.58/451,331.19 - Step 6: Final answer
x = 397,564.15
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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.