Finding the Fourth Proportional to 748,173.42, 1,032,449.49 and 421,478.82
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Solution
The fourth proportional to 748,173.42, 1,032,449.49 and 421,478.82 is: 581,623.97
Step by Step Solution
- Step 1: Write the proportion equation
748,173.42 : 1,032,449.49 = 421,478.82 : x - Step 2: Convert to fraction form
748,173.42/1,032,449.49 = 421,478.82/x - Step 3: Cross multiply
748,173.42x = 1,032,449.49 × 421,478.82 - Step 4: Simplify right side
748,173.42x = 435,155,592,754.80 - Step 5: Solve for x
x = 435,155,592,754.80/748,173.42 - Step 6: Final answer
x = 581,623.97
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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.