Finding the Fourth Proportional to 1,970,431.28, 2,719,156.72 and 1,110,974.84
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Solution
The fourth proportional to 1,970,431.28, 2,719,156.72 and 1,110,974.84 is: 1,533,123.60
Step by Step Solution
- Step 1: Write the proportion equation
1,970,431.28 : 2,719,156.72 = 1,110,974.84 : x - Step 2: Convert to fraction form
1,970,431.28/2,719,156.72 = 1,110,974.84/x - Step 3: Cross multiply
1,970,431.28x = 2,719,156.72 × 1,110,974.84 - Step 4: Simplify right side
1,970,431.28x = 3,020,914,701,936.93 - Step 5: Solve for x
x = 3,020,914,701,936.93/1,970,431.28 - Step 6: Final answer
x = 1,533,123.60
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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.