Finding the Fourth Proportional to 1,415,005.49, 1,952,742.70 and 770,461.05
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Solution
The fourth proportional to 1,415,005.49, 1,952,742.70 and 770,461.05 is: 1,063,255.37
Step by Step Solution
- Step 1: Write the proportion equation
1,415,005.49 : 1,952,742.70 = 770,461.05 : x - Step 2: Convert to fraction form
1,415,005.49/1,952,742.70 = 770,461.05/x - Step 3: Cross multiply
1,415,005.49x = 1,952,742.70 × 770,461.05 - Step 4: Simplify right side
1,415,005.49x = 1,504,512,191,021.84 - Step 5: Solve for x
x = 1,504,512,191,021.84/1,415,005.49 - Step 6: Final answer
x = 1,063,255.37
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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.