Finding the Fourth Proportional to 1,010,014.80, 1,393,818.84 and 557,305.44
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Solution
The fourth proportional to 1,010,014.80, 1,393,818.84 and 557,305.44 is: 769,080.63
Step by Step Solution
- Step 1: Write the proportion equation
1,010,014.80 : 1,393,818.84 = 557,305.44 : x - Step 2: Convert to fraction form
1,010,014.80/1,393,818.84 = 557,305.44/x - Step 3: Cross multiply
1,010,014.80x = 1,393,818.84 × 557,305.44 - Step 4: Simplify right side
1,010,014.80x = 776,782,821,906.49 - Step 5: Solve for x
x = 776,782,821,906.49/1,010,014.80 - Step 6: Final answer
x = 769,080.63
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1.5x scale
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.