Finding the Fourth Proportional to 447,723.10, 617,837.79 and 243,768.88
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Solution
The fourth proportional to 447,723.10, 617,837.79 and 243,768.88 is: 336,390.12
Step by Step Solution
- Step 1: Write the proportion equation
447,723.10 : 617,837.79 = 243,768.88 : x - Step 2: Convert to fraction form
447,723.10/617,837.79 = 243,768.88/x - Step 3: Cross multiply
447,723.10x = 617,837.79 × 243,768.88 - Step 4: Simplify right side
447,723.10x = 150,609,626,089.98 - Step 5: Solve for x
x = 150,609,626,089.98/447,723.10 - Step 6: Final answer
x = 336,390.12
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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.