Finding the Fourth Proportional to 488,686.23, 673,987.15 and 343,971.08
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Solution
The fourth proportional to 488,686.23, 673,987.15 and 343,971.08 is: 474,398.65
Step by Step Solution
- Step 1: Write the proportion equation
488,686.23 : 673,987.15 = 343,971.08 : x - Step 2: Convert to fraction form
488,686.23/673,987.15 = 343,971.08/x - Step 3: Cross multiply
488,686.23x = 673,987.15 × 343,971.08 - Step 4: Simplify right side
488,686.23x = 231,832,087,891.62 - Step 5: Solve for x
x = 231,832,087,891.62/488,686.23 - Step 6: Final answer
x = 474,398.65
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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.