Finding the Fourth Proportional to 1,239,761.80, 1,859,642.70 and 341,201.80
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Solution
The fourth proportional to 1,239,761.80, 1,859,642.70 and 341,201.80 is: 511,802.70
Step by Step Solution
- Step 1: Write the proportion equation
1,239,761.80 : 1,859,642.70 = 341,201.80 : x - Step 2: Convert to fraction form
1,239,761.80/1,859,642.70 = 341,201.80/x - Step 3: Cross multiply
1,239,761.80x = 1,859,642.70 × 341,201.80 - Step 4: Simplify right side
1,239,761.80x = 634,513,436,596.86 - Step 5: Solve for x
x = 634,513,436,596.86/1,239,761.80 - Step 6: Final answer
x = 511,802.70
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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.