Finding the Fourth Proportional to 875,765.09, 1,209,239.92 and 685,321.13
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Solution
The fourth proportional to 875,765.09, 1,209,239.92 and 685,321.13 is: 946,278.49
Step by Step Solution
- Step 1: Write the proportion equation
875,765.09 : 1,209,239.92 = 685,321.13 : x - Step 2: Convert to fraction form
875,765.09/1,209,239.92 = 685,321.13/x - Step 3: Cross multiply
875,765.09x = 1,209,239.92 × 685,321.13 - Step 4: Simplify right side
875,765.09x = 828,717,672,295.26 - Step 5: Solve for x
x = 828,717,672,295.26/875,765.09 - Step 6: Final answer
x = 946,278.49
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.