Finding the Fourth Proportional to 3,218,178.24, 4,441,114.16 and 1,767,903.20
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Solution
The fourth proportional to 3,218,178.24, 4,441,114.16 and 1,767,903.20 is: 2,439,721.90
Step by Step Solution
- Step 1: Write the proportion equation
3,218,178.24 : 4,441,114.16 = 1,767,903.20 : x - Step 2: Convert to fraction form
3,218,178.24/4,441,114.16 = 1,767,903.20/x - Step 3: Cross multiply
3,218,178.24x = 4,441,114.16 × 1,767,903.20 - Step 4: Simplify right side
3,218,178.24x = 7,851,459,935,029.31 - Step 5: Solve for x
x = 7,851,459,935,029.31/3,218,178.24 - Step 6: Final answer
x = 2,439,721.90
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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.