Finding the Fourth Proportional to 816,478.42, 1,127,290.05 and 730,169.62
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Solution
The fourth proportional to 816,478.42, 1,127,290.05 and 730,169.62 is: 1,008,125.78
Step by Step Solution
- Step 1: Write the proportion equation
816,478.42 : 1,127,290.05 = 730,169.62 : x - Step 2: Convert to fraction form
816,478.42/1,127,290.05 = 730,169.62/x - Step 3: Cross multiply
816,478.42x = 1,127,290.05 × 730,169.62 - Step 4: Simplify right side
816,478.42x = 823,112,947,438.28 - Step 5: Solve for x
x = 823,112,947,438.28/816,478.42 - Step 6: Final answer
x = 1,008,125.78
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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.