Finding the Fourth Proportional to 873,684.13, 1,205,484.64 and 491,571.49
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Solution
The fourth proportional to 873,684.13, 1,205,484.64 and 491,571.49 is: 678,256.43
Step by Step Solution
- Step 1: Write the proportion equation
873,684.13 : 1,205,484.64 = 491,571.49 : x - Step 2: Convert to fraction form
873,684.13/1,205,484.64 = 491,571.49/x - Step 3: Cross multiply
873,684.13x = 1,205,484.64 × 491,571.49 - Step 4: Simplify right side
873,684.13x = 592,581,880,656.91 - Step 5: Solve for x
x = 592,581,880,656.91/873,684.13 - Step 6: Final answer
x = 678,256.43
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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.