Finding the Fourth Proportional to 1,247,991.12, 1,722,228.12 and 704,242.44
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Solution
The fourth proportional to 1,247,991.12, 1,722,228.12 and 704,242.44 is: 971,854.78
Step by Step Solution
- Step 1: Write the proportion equation
1,247,991.12 : 1,722,228.12 = 704,242.44 : x - Step 2: Convert to fraction form
1,247,991.12/1,722,228.12 = 704,242.44/x - Step 3: Cross multiply
1,247,991.12x = 1,722,228.12 × 704,242.44 - Step 4: Simplify right side
1,247,991.12x = 1,212,866,133,465.41 - Step 5: Solve for x
x = 1,212,866,133,465.41/1,247,991.12 - Step 6: Final answer
x = 971,854.78
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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.