Finding the Fourth Proportional to 1,053,840.11, 1,580,764.21 and 255,120.37
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Solution
The fourth proportional to 1,053,840.11, 1,580,764.21 and 255,120.37 is: 382,681.53
Step by Step Solution
- Step 1: Write the proportion equation
1,053,840.11 : 1,580,764.21 = 255,120.37 : x - Step 2: Convert to fraction form
1,053,840.11/1,580,764.21 = 255,120.37/x - Step 3: Cross multiply
1,053,840.11x = 1,580,764.21 × 255,120.37 - Step 4: Simplify right side
1,053,840.11x = 403,285,145,548.25 - Step 5: Solve for x
x = 403,285,145,548.25/1,053,840.11 - Step 6: Final answer
x = 382,681.53
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1.5x scale
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.