Finding the Fourth Proportional to 887,136.70, 1,330,705.05 and 487,571.80
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Solution
The fourth proportional to 887,136.70, 1,330,705.05 and 487,571.80 is: 731,357.70
Step by Step Solution
- Step 1: Write the proportion equation
887,136.70 : 1,330,705.05 = 487,571.80 : x - Step 2: Convert to fraction form
887,136.70/1,330,705.05 = 487,571.80/x - Step 3: Cross multiply
887,136.70x = 1,330,705.05 × 487,571.80 - Step 4: Simplify right side
887,136.70x = 648,814,256,497.59 - Step 5: Solve for x
x = 648,814,256,497.59/887,136.70 - Step 6: Final answer
x = 731,357.70
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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.