Finding the Fourth Proportional to 1,368,168.88, 1,888,605.84 and 1,224,680.56
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Solution
The fourth proportional to 1,368,168.88, 1,888,605.84 and 1,224,680.56 is: 1,690,536.08
Step by Step Solution
- Step 1: Write the proportion equation
1,368,168.88 : 1,888,605.84 = 1,224,680.56 : x - Step 2: Convert to fraction form
1,368,168.88/1,888,605.84 = 1,224,680.56/x - Step 3: Cross multiply
1,368,168.88x = 1,888,605.84 × 1,224,680.56 - Step 4: Simplify right side
1,368,168.88x = 2,312,938,857,750.47 - Step 5: Solve for x
x = 2,312,938,857,750.47/1,368,168.88 - Step 6: Final answer
x = 1,690,536.08
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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.