Finding the Fourth Proportional to 557,936.08, 769,987.56 and 312,943.84
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Solution
The fourth proportional to 557,936.08, 769,987.56 and 312,943.84 is: 431,882.56
Step by Step Solution
- Step 1: Write the proportion equation
557,936.08 : 769,987.56 = 312,943.84 : x - Step 2: Convert to fraction form
557,936.08/769,987.56 = 312,943.84/x - Step 3: Cross multiply
557,936.08x = 769,987.56 × 312,943.84 - Step 4: Simplify right side
557,936.08x = 240,962,863,778.63 - Step 5: Solve for x
x = 240,962,863,778.63/557,936.08 - Step 6: Final answer
x = 431,882.56
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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.