Finding the Fourth Proportional to 418,979.93, 628,568.29 and 138,497.17
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Solution
The fourth proportional to 418,979.93, 628,568.29 and 138,497.17 is: 207,778.28
Step by Step Solution
- Step 1: Write the proportion equation
418,979.93 : 628,568.29 = 138,497.17 : x - Step 2: Convert to fraction form
418,979.93/628,568.29 = 138,497.17/x - Step 3: Cross multiply
418,979.93x = 628,568.29 × 138,497.17 - Step 4: Simplify right side
418,979.93x = 87,054,927,918.44 - Step 5: Solve for x
x = 87,054,927,918.44/418,979.93 - Step 6: Final answer
x = 207,778.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.