Finding the Fourth Proportional to 725,596.20, 1,088,394.30 and 660,277.80
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Solution
The fourth proportional to 725,596.20, 1,088,394.30 and 660,277.80 is: 990,416.70
Step by Step Solution
- Step 1: Write the proportion equation
725,596.20 : 1,088,394.30 = 660,277.80 : x - Step 2: Convert to fraction form
725,596.20/1,088,394.30 = 660,277.80/x - Step 3: Cross multiply
725,596.20x = 1,088,394.30 × 660,277.80 - Step 4: Simplify right side
725,596.20x = 718,642,593,936.54 - Step 5: Solve for x
x = 718,642,593,936.54/725,596.20 - Step 6: Final answer
x = 990,416.70
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1.5x scale
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.