Finding the Fourth Proportional to 930,608.76, 1,284,212.12 and 517,144.14
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Solution
The fourth proportional to 930,608.76, 1,284,212.12 and 517,144.14 is: 713,643.37
Step by Step Solution
- Step 1: Write the proportion equation
930,608.76 : 1,284,212.12 = 517,144.14 : x - Step 2: Convert to fraction form
930,608.76/1,284,212.12 = 517,144.14/x - Step 3: Cross multiply
930,608.76x = 1,284,212.12 × 517,144.14 - Step 4: Simplify right side
930,608.76x = 664,122,772,374.98 - Step 5: Solve for x
x = 664,122,772,374.98/930,608.76 - Step 6: Final answer
x = 713,643.37
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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.