Finding the Fourth Proportional to 862,781.13, 1,190,628.26 and 470,305.48
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Solution
The fourth proportional to 862,781.13, 1,190,628.26 and 470,305.48 is: 649,016.28
Step by Step Solution
- Step 1: Write the proportion equation
862,781.13 : 1,190,628.26 = 470,305.48 : x - Step 2: Convert to fraction form
862,781.13/1,190,628.26 = 470,305.48/x - Step 3: Cross multiply
862,781.13x = 1,190,628.26 × 470,305.48 - Step 4: Simplify right side
862,781.13x = 559,958,992,969.34 - Step 5: Solve for x
x = 559,958,992,969.34/862,781.13 - Step 6: Final answer
x = 649,016.28
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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.