Finding the Fourth Proportional to 880,936.70, 1,321,405.05 and 725,416.70
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Solution
The fourth proportional to 880,936.70, 1,321,405.05 and 725,416.70 is: 1,088,125.05
Step by Step Solution
- Step 1: Write the proportion equation
880,936.70 : 1,321,405.05 = 725,416.70 : x - Step 2: Convert to fraction form
880,936.70/1,321,405.05 = 725,416.70/x - Step 3: Cross multiply
880,936.70x = 1,321,405.05 × 725,416.70 - Step 4: Simplify right side
880,936.70x = 958,569,290,734.34 - Step 5: Solve for x
x = 958,569,290,734.34/880,936.70 - Step 6: Final answer
x = 1,088,125.05
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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.