Finding the Fourth Proportional to 873,685.13, 1,205,486.02 and 491,572.49
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Solution
The fourth proportional to 873,685.13, 1,205,486.02 and 491,572.49 is: 678,257.81
Step by Step Solution
- Step 1: Write the proportion equation
873,685.13 : 1,205,486.02 = 491,572.49 : x - Step 2: Convert to fraction form
873,685.13/1,205,486.02 = 491,572.49/x - Step 3: Cross multiply
873,685.13x = 1,205,486.02 × 491,572.49 - Step 4: Simplify right side
873,685.13x = 592,583,764,511.59 - Step 5: Solve for x
x = 592,583,764,511.59/873,685.13 - Step 6: Final answer
x = 678,257.81
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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.