Finding the Fourth Proportional to 873,633.27, 1,205,611.43 and 491,660.05
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Solution
The fourth proportional to 873,633.27, 1,205,611.43 and 491,660.05 is: 678,489.47
Step by Step Solution
- Step 1: Write the proportion equation
873,633.27 : 1,205,611.43 = 491,660.05 : x - Step 2: Convert to fraction form
873,633.27/1,205,611.43 = 491,660.05/x - Step 3: Cross multiply
873,633.27x = 1,205,611.43 × 491,660.05 - Step 4: Simplify right side
873,633.27x = 592,750,975,954.37 - Step 5: Solve for x
x = 592,750,975,954.37/873,633.27 - Step 6: Final answer
x = 678,489.47
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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.