Finding the Fourth Proportional to 620,239.42, 855,881.67 and 351,967.42
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Solution
The fourth proportional to 620,239.42, 855,881.67 and 351,967.42 is: 485,687.39
Step by Step Solution
- Step 1: Write the proportion equation
620,239.42 : 855,881.67 = 351,967.42 : x - Step 2: Convert to fraction form
620,239.42/855,881.67 = 351,967.42/x - Step 3: Cross multiply
620,239.42x = 855,881.67 × 351,967.42 - Step 4: Simplify right side
620,239.42x = 301,242,463,215.19 - Step 5: Solve for x
x = 301,242,463,215.19/620,239.42 - Step 6: Final answer
x = 485,687.39
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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.