Finding the Fourth Proportional to 421,824.09, 632,829.09 and 122,317.18
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Solution
The fourth proportional to 421,824.09, 632,829.09 and 122,317.18 is: 183,502.72
Step by Step Solution
- Step 1: Write the proportion equation
421,824.09 : 632,829.09 = 122,317.18 : x - Step 2: Convert to fraction form
421,824.09/632,829.09 = 122,317.18/x - Step 3: Cross multiply
421,824.09x = 632,829.09 × 122,317.18 - Step 4: Simplify right side
421,824.09x = 77,405,869,710.77 - Step 5: Solve for x
x = 77,405,869,710.77/421,824.09 - Step 6: Final answer
x = 183,502.72
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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.