Finding the Fourth Proportional to 612,396.28, 845,058.85 and 340,447.62
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Solution
The fourth proportional to 612,396.28, 845,058.85 and 340,447.62 is: 469,791.02
Step by Step Solution
- Step 1: Write the proportion equation
612,396.28 : 845,058.85 = 340,447.62 : x - Step 2: Convert to fraction form
612,396.28/845,058.85 = 340,447.62/x - Step 3: Cross multiply
612,396.28x = 845,058.85 × 340,447.62 - Step 4: Simplify right side
612,396.28x = 287,698,274,242.44 - Step 5: Solve for x
x = 287,698,274,242.44/612,396.28 - Step 6: Final answer
x = 469,791.02
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1.5x scale
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.