Finding the Fourth Proportional to 511,089.59, 705,308.36 and 281,655.09
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Solution
The fourth proportional to 511,089.59, 705,308.36 and 281,655.09 is: 388,686.63
Step by Step Solution
- Step 1: Write the proportion equation
511,089.59 : 705,308.36 = 281,655.09 : x - Step 2: Convert to fraction form
511,089.59/705,308.36 = 281,655.09/x - Step 3: Cross multiply
511,089.59x = 705,308.36 × 281,655.09 - Step 4: Simplify right side
511,089.59x = 198,653,690,317.69 - Step 5: Solve for x
x = 198,653,690,317.69/511,089.59 - Step 6: Final answer
x = 388,686.63
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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.