Finding the Fourth Proportional to 2,688,807.21, 3,706,352.27 and 1,827,872.79
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Solution
The fourth proportional to 2,688,807.21, 3,706,352.27 and 1,827,872.79 is: 2,519,608.12
Step by Step Solution
- Step 1: Write the proportion equation
2,688,807.21 : 3,706,352.27 = 1,827,872.79 : x - Step 2: Convert to fraction form
2,688,807.21/3,706,352.27 = 1,827,872.79/x - Step 3: Cross multiply
2,688,807.21x = 3,706,352.27 × 1,827,872.79 - Step 4: Simplify right side
2,688,807.21x = 6,774,740,469,057.42 - Step 5: Solve for x
x = 6,774,740,469,057.42/2,688,807.21 - Step 6: Final answer
x = 2,519,608.12
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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.