Finding the Fourth Proportional to 1,355,754.80, 1,871,107.55 and 782,794.01
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Solution
The fourth proportional to 1,355,754.80, 1,871,107.55 and 782,794.01 is: 1,080,351.54
Step by Step Solution
- Step 1: Write the proportion equation
1,355,754.80 : 1,871,107.55 = 782,794.01 : x - Step 2: Convert to fraction form
1,355,754.80/1,871,107.55 = 782,794.01/x - Step 3: Cross multiply
1,355,754.80x = 1,871,107.55 × 782,794.01 - Step 4: Simplify right side
1,355,754.80x = 1,464,691,782,205.78 - Step 5: Solve for x
x = 1,464,691,782,205.78/1,355,754.80 - Step 6: Final answer
x = 1,080,351.54
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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.