Finding the Fourth Proportional to 873,634.24, 1,205,415.84 and 491,521.60
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Solution
The fourth proportional to 873,634.24, 1,205,415.84 and 491,521.60 is: 678,187.62
Step by Step Solution
- Step 1: Write the proportion equation
873,634.24 : 1,205,415.84 = 491,521.60 : x - Step 2: Convert to fraction form
873,634.24/1,205,415.84 = 491,521.60/x - Step 3: Cross multiply
873,634.24x = 1,205,415.84 × 491,521.60 - Step 4: Simplify right side
873,634.24x = 592,487,922,342.14 - Step 5: Solve for x
x = 592,487,922,342.14/873,634.24 - Step 6: Final answer
x = 678,187.62
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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.