Finding the Fourth Proportional to 2,136,860.84, 2,948,867.43 and 1,169,990.87
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Solution
The fourth proportional to 2,136,860.84, 2,948,867.43 and 1,169,990.87 is: 1,614,587.11
Step by Step Solution
- Step 1: Write the proportion equation
2,136,860.84 : 2,948,867.43 = 1,169,990.87 : x - Step 2: Convert to fraction form
2,136,860.84/2,948,867.43 = 1,169,990.87/x - Step 3: Cross multiply
2,136,860.84x = 2,948,867.43 × 1,169,990.87 - Step 4: Simplify right side
2,136,860.84x = 3,450,147,969,940.37 - Step 5: Solve for x
x = 3,450,147,969,940.37/2,136,860.84 - Step 6: Final answer
x = 1,614,587.11
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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.