Finding the Fourth Proportional to 1,645.09, 2,468.61 and 605.82
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Solution
The fourth proportional to 1,645.09, 2,468.61 and 605.82 is: 909.09
Step by Step Solution
- Step 1: Write the proportion equation
1,645.09 : 2,468.61 = 605.82 : x - Step 2: Convert to fraction form
1,645.09/2,468.61 = 605.82/x - Step 3: Cross multiply
1,645.09x = 2,468.61 × 605.82 - Step 4: Simplify right side
1,645.09x = 1,495,531.04 - Step 5: Solve for x
x = 1,495,531.04/1,645.09 - Step 6: Final answer
x = 909.09
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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.