Finding the Fourth Proportional to 1,580,415.22, 2,180,979.65 and 855,262.97
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Solution
The fourth proportional to 1,580,415.22, 2,180,979.65 and 855,262.97 is: 1,180,266.50
Step by Step Solution
- Step 1: Write the proportion equation
1,580,415.22 : 2,180,979.65 = 855,262.97 : x - Step 2: Convert to fraction form
1,580,415.22/2,180,979.65 = 855,262.97/x - Step 3: Cross multiply
1,580,415.22x = 2,180,979.65 × 855,262.97 - Step 4: Simplify right side
1,580,415.22x = 1,865,311,132,968.56 - Step 5: Solve for x
x = 1,865,311,132,968.56/1,580,415.22 - Step 6: Final answer
x = 1,180,266.50
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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.