Finding the Fourth Proportional to 860,114.49, 1,290,327.28 and 354,394.13
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Solution
The fourth proportional to 860,114.49, 1,290,327.28 and 354,394.13 is: 531,655.28
Step by Step Solution
- Step 1: Write the proportion equation
860,114.49 : 1,290,327.28 = 354,394.13 : x - Step 2: Convert to fraction form
860,114.49/1,290,327.28 = 354,394.13/x - Step 3: Cross multiply
860,114.49x = 1,290,327.28 × 354,394.13 - Step 4: Simplify right side
860,114.49x = 457,284,406,473.25 - Step 5: Solve for x
x = 457,284,406,473.25/860,114.49 - Step 6: Final answer
x = 531,655.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.