Finding the Fourth Proportional to 912,486.62, 1,259,239.68 and 504,615.91
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Solution
The fourth proportional to 912,486.62, 1,259,239.68 and 504,615.91 is: 696,374.46
Step by Step Solution
- Step 1: Write the proportion equation
912,486.62 : 1,259,239.68 = 504,615.91 : x - Step 2: Convert to fraction form
912,486.62/1,259,239.68 = 504,615.91/x - Step 3: Cross multiply
912,486.62x = 1,259,239.68 × 504,615.91 - Step 4: Simplify right side
912,486.62x = 635,432,373,883.21 - Step 5: Solve for x
x = 635,432,373,883.21/912,486.62 - Step 6: Final answer
x = 696,374.46
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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.