Finding the Fourth Proportional to 1,247,422.84, 1,869,543.42 and 607,879.24
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Solution
The fourth proportional to 1,247,422.84, 1,869,543.42 and 607,879.24 is: 911,043.63
Step by Step Solution
- Step 1: Write the proportion equation
1,247,422.84 : 1,869,543.42 = 607,879.24 : x - Step 2: Convert to fraction form
1,247,422.84/1,869,543.42 = 607,879.24/x - Step 3: Cross multiply
1,247,422.84x = 1,869,543.42 × 607,879.24 - Step 4: Simplify right side
1,247,422.84x = 1,136,456,633,296.60 - Step 5: Solve for x
x = 1,136,456,633,296.60/1,247,422.84 - Step 6: Final answer
x = 911,043.63
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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.