Finding the Fourth Proportional to 721,803.26, 996,112.01 and 415,855.63
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Solution
The fourth proportional to 721,803.26, 996,112.01 and 415,855.63 is: 573,894.32
Step by Step Solution
- Step 1: Write the proportion equation
721,803.26 : 996,112.01 = 415,855.63 : x - Step 2: Convert to fraction form
721,803.26/996,112.01 = 415,855.63/x - Step 3: Cross multiply
721,803.26x = 996,112.01 × 415,855.63 - Step 4: Simplify right side
721,803.26x = 414,238,789,753.90 - Step 5: Solve for x
x = 414,238,789,753.90/721,803.26 - Step 6: Final answer
x = 573,894.32
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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.