Finding the Fourth Proportional to 470,243.49, 649,205.01 and 309,565.63
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Solution
The fourth proportional to 470,243.49, 649,205.01 and 309,565.63 is: 427,377.65
Step by Step Solution
- Step 1: Write the proportion equation
470,243.49 : 649,205.01 = 309,565.63 : x - Step 2: Convert to fraction form
470,243.49/649,205.01 = 309,565.63/x - Step 3: Cross multiply
470,243.49x = 649,205.01 × 309,565.63 - Step 4: Simplify right side
470,243.49x = 200,971,558,693.72 - Step 5: Solve for x
x = 200,971,558,693.72/470,243.49 - Step 6: Final answer
x = 427,377.65
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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.