Finding the Fourth Proportional to 1,548,421.63, 2,136,821.84 and 869,372.71
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Solution
The fourth proportional to 1,548,421.63, 2,136,821.84 and 869,372.71 is: 1,199,734.33
Step by Step Solution
- Step 1: Write the proportion equation
1,548,421.63 : 2,136,821.84 = 869,372.71 : x - Step 2: Convert to fraction form
1,548,421.63/2,136,821.84 = 869,372.71/x - Step 3: Cross multiply
1,548,421.63x = 2,136,821.84 × 869,372.71 - Step 4: Simplify right side
1,548,421.63x = 1,857,694,593,827.99 - Step 5: Solve for x
x = 1,857,694,593,827.99/1,548,421.63 - Step 6: Final answer
x = 1,199,734.33
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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.