Finding the Fourth Proportional to 813,369.43, 1,122,449.93 and 450,816.67
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Solution
The fourth proportional to 813,369.43, 1,122,449.93 and 450,816.67 is: 622,127.06
Step by Step Solution
- Step 1: Write the proportion equation
813,369.43 : 1,122,449.93 = 450,816.67 : x - Step 2: Convert to fraction form
813,369.43/1,122,449.93 = 450,816.67/x - Step 3: Cross multiply
813,369.43x = 1,122,449.93 × 450,816.67 - Step 4: Simplify right side
813,369.43x = 506,019,131,818.00 - Step 5: Solve for x
x = 506,019,131,818.00/813,369.43 - Step 6: Final answer
x = 622,127.06
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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.