Finding the Fourth Proportional to 620,394.23, 855,926.02 and 405,659.99
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Solution
The fourth proportional to 620,394.23, 855,926.02 and 405,659.99 is: 559,668.23
Step by Step Solution
- Step 1: Write the proportion equation
620,394.23 : 855,926.02 = 405,659.99 : x - Step 2: Convert to fraction form
620,394.23/855,926.02 = 405,659.99/x - Step 3: Cross multiply
620,394.23x = 855,926.02 × 405,659.99 - Step 4: Simplify right side
620,394.23x = 347,214,943,360.83 - Step 5: Solve for x
x = 347,214,943,360.83/620,394.23 - Step 6: Final answer
x = 559,668.23
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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.