Finding the Fourth Proportional to 2,868,689.79, 3,958,937.37 and 1,628,387.46
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Solution
The fourth proportional to 2,868,689.79, 3,958,937.37 and 1,628,387.46 is: 2,247,257.26
Step by Step Solution
- Step 1: Write the proportion equation
2,868,689.79 : 3,958,937.37 = 1,628,387.46 : x - Step 2: Convert to fraction form
2,868,689.79/3,958,937.37 = 1,628,387.46/x - Step 3: Cross multiply
2,868,689.79x = 3,958,937.37 × 1,628,387.46 - Step 4: Simplify right side
2,868,689.79x = 6,446,683,968,233.38 - Step 5: Solve for x
x = 6,446,683,968,233.38/2,868,689.79 - Step 6: Final answer
x = 2,247,257.26
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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.