Finding the Fourth Proportional to 816,045.40, 1,125,813.81 and 493,194.99
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Solution
The fourth proportional to 816,045.40, 1,125,813.81 and 493,194.99 is: 680,410.34
Step by Step Solution
- Step 1: Write the proportion equation
816,045.40 : 1,125,813.81 = 493,194.99 : x - Step 2: Convert to fraction form
816,045.40/1,125,813.81 = 493,194.99/x - Step 3: Cross multiply
816,045.40x = 1,125,813.81 × 493,194.99 - Step 4: Simplify right side
816,045.40x = 555,245,730,764.81 - Step 5: Solve for x
x = 555,245,730,764.81/816,045.40 - Step 6: Final answer
x = 680,410.34
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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.