Finding the Fourth Proportional to 762,523.09, 1,051,418.98 and 486,511.54
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Solution
The fourth proportional to 762,523.09, 1,051,418.98 and 486,511.54 is: 670,835.38
Step by Step Solution
- Step 1: Write the proportion equation
762,523.09 : 1,051,418.98 = 486,511.54 : x - Step 2: Convert to fraction form
762,523.09/1,051,418.98 = 486,511.54/x - Step 3: Cross multiply
762,523.09x = 1,051,418.98 × 486,511.54 - Step 4: Simplify right side
762,523.09x = 511,527,467,145.03 - Step 5: Solve for x
x = 511,527,467,145.03/762,523.09 - Step 6: Final answer
x = 670,835.38
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1.5x scale
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.