Finding the Fourth Proportional to 2,165,200.71, 2,987,885.12 and 1,198,240.53
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Solution
The fourth proportional to 2,165,200.71, 2,987,885.12 and 1,198,240.53 is: 1,653,521.09
Step by Step Solution
- Step 1: Write the proportion equation
2,165,200.71 : 2,987,885.12 = 1,198,240.53 : x - Step 2: Convert to fraction form
2,165,200.71/2,987,885.12 = 1,198,240.53/x - Step 3: Cross multiply
2,165,200.71x = 2,987,885.12 × 1,198,240.53 - Step 4: Simplify right side
2,165,200.71x = 3,580,205,039,312.25 - Step 5: Solve for x
x = 3,580,205,039,312.25/2,165,200.71 - Step 6: Final answer
x = 1,653,521.09
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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.