Finding the Fourth Proportional to 680,090.16, 1,020,192.35 and 206,779.62
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Solution
The fourth proportional to 680,090.16, 1,020,192.35 and 206,779.62 is: 310,186.79
Step by Step Solution
- Step 1: Write the proportion equation
680,090.16 : 1,020,192.35 = 206,779.62 : x - Step 2: Convert to fraction form
680,090.16/1,020,192.35 = 206,779.62/x - Step 3: Cross multiply
680,090.16x = 1,020,192.35 × 206,779.62 - Step 4: Simplify right side
680,090.16x = 210,954,986,459.91 - Step 5: Solve for x
x = 210,954,986,459.91/680,090.16 - Step 6: Final answer
x = 310,186.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.