Finding the Fourth Proportional to 913,918.68, 1,261,207.62 and 511,510.68
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Solution
The fourth proportional to 913,918.68, 1,261,207.62 and 511,510.68 is: 705,884.65
Step by Step Solution
- Step 1: Write the proportion equation
913,918.68 : 1,261,207.62 = 511,510.68 : x - Step 2: Convert to fraction form
913,918.68/1,261,207.62 = 511,510.68/x - Step 3: Cross multiply
913,918.68x = 1,261,207.62 × 511,510.68 - Step 4: Simplify right side
913,918.68x = 645,121,167,327.38 - Step 5: Solve for x
x = 645,121,167,327.38/913,918.68 - Step 6: Final answer
x = 705,884.65
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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.