Finding the Fourth Proportional to 816,926.18, 1,127,351.84 and 449,395.40
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Solution
The fourth proportional to 816,926.18, 1,127,351.84 and 449,395.40 is: 620,162.19
Step by Step Solution
- Step 1: Write the proportion equation
816,926.18 : 1,127,351.84 = 449,395.40 : x - Step 2: Convert to fraction form
816,926.18/1,127,351.84 = 449,395.40/x - Step 3: Cross multiply
816,926.18x = 1,127,351.84 × 449,395.40 - Step 4: Simplify right side
816,926.18x = 506,626,731,077.54 - Step 5: Solve for x
x = 506,626,731,077.54/816,926.18 - Step 6: Final answer
x = 620,162.19
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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.