Finding the Fourth Proportional to 447,424.11, 617,456.70 and 243,486.09
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Solution
The fourth proportional to 447,424.11, 617,456.70 and 243,486.09 is: 336,017.02
Step by Step Solution
- Step 1: Write the proportion equation
447,424.11 : 617,456.70 = 243,486.09 : x - Step 2: Convert to fraction form
447,424.11/617,456.70 = 243,486.09/x - Step 3: Cross multiply
447,424.11x = 617,456.70 × 243,486.09 - Step 4: Simplify right side
447,424.11x = 150,342,117,627.30 - Step 5: Solve for x
x = 150,342,117,627.30/447,424.11 - Step 6: Final answer
x = 336,017.02
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1.5x scale
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.