Finding the Fourth Proportional to 554,164.20, 764,731.26 and 312,444.63
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Solution
The fourth proportional to 554,164.20, 764,731.26 and 312,444.63 is: 431,164.94
Step by Step Solution
- Step 1: Write the proportion equation
554,164.20 : 764,731.26 = 312,444.63 : x - Step 2: Convert to fraction form
554,164.20/764,731.26 = 312,444.63/x - Step 3: Cross multiply
554,164.20x = 764,731.26 × 312,444.63 - Step 4: Simplify right side
554,164.20x = 238,936,175,580.13 - Step 5: Solve for x
x = 238,936,175,580.13/554,164.20 - Step 6: Final answer
x = 431,164.94
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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.