Finding the Fourth Proportional to 1,239,763.80, 1,859,645.70 and 341,203.80
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Solution
The fourth proportional to 1,239,763.80, 1,859,645.70 and 341,203.80 is: 511,805.70
Step by Step Solution
- Step 1: Write the proportion equation
1,239,763.80 : 1,859,645.70 = 341,203.80 : x - Step 2: Convert to fraction form
1,239,763.80/1,859,645.70 = 341,203.80/x - Step 3: Cross multiply
1,239,763.80x = 1,859,645.70 × 341,203.80 - Step 4: Simplify right side
1,239,763.80x = 634,518,179,493.66 - Step 5: Solve for x
x = 634,518,179,493.66/1,239,763.80 - Step 6: Final answer
x = 511,805.70
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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.