Finding the Fourth Proportional to 674,816.67, 931,218.73 and 399,353.09
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Solution
The fourth proportional to 674,816.67, 931,218.73 and 399,353.09 is: 551,090.52
Step by Step Solution
- Step 1: Write the proportion equation
674,816.67 : 931,218.73 = 399,353.09 : x - Step 2: Convert to fraction form
674,816.67/931,218.73 = 399,353.09/x - Step 3: Cross multiply
674,816.67x = 931,218.73 × 399,353.09 - Step 4: Simplify right side
674,816.67x = 371,885,071,636.90 - Step 5: Solve for x
x = 371,885,071,636.90/674,816.67 - Step 6: Final answer
x = 551,090.52
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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.