Finding the Fourth Proportional to 722,170.49, 996,583.05 and 399,873.65
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Solution
The fourth proportional to 722,170.49, 996,583.05 and 399,873.65 is: 551,818.86
Step by Step Solution
- Step 1: Write the proportion equation
722,170.49 : 996,583.05 = 399,873.65 : x - Step 2: Convert to fraction form
722,170.49/996,583.05 = 399,873.65/x - Step 3: Cross multiply
722,170.49x = 996,583.05 × 399,873.65 - Step 4: Simplify right side
722,170.49x = 398,507,296,748.72 - Step 5: Solve for x
x = 398,507,296,748.72/722,170.49 - Step 6: Final answer
x = 551,818.86
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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.