Finding the Fourth Proportional to 1,385,854.80, 2,080,920.60 and 755,998.80
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Solution
The fourth proportional to 1,385,854.80, 2,080,920.60 and 755,998.80 is: 1,135,164.72
Step by Step Solution
- Step 1: Write the proportion equation
1,385,854.80 : 2,080,920.60 = 755,998.80 : x - Step 2: Convert to fraction form
1,385,854.80/2,080,920.60 = 755,998.80/x - Step 3: Cross multiply
1,385,854.80x = 2,080,920.60 × 755,998.80 - Step 4: Simplify right side
1,385,854.80x = 1,573,173,476,495.28 - Step 5: Solve for x
x = 1,573,173,476,495.28/1,385,854.80 - Step 6: Final answer
x = 1,135,164.72
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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.