Finding the Fourth Proportional to 1,930,356.74, 2,664,128.54 and 1,114,559.05
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Solution
The fourth proportional to 1,930,356.74, 2,664,128.54 and 1,114,559.05 is: 1,538,227.89
Step by Step Solution
- Step 1: Write the proportion equation
1,930,356.74 : 2,664,128.54 = 1,114,559.05 : x - Step 2: Convert to fraction form
1,930,356.74/2,664,128.54 = 1,114,559.05/x - Step 3: Cross multiply
1,930,356.74x = 2,664,128.54 × 1,114,559.05 - Step 4: Simplify right side
1,930,356.74x = 2,969,328,574,620.29 - Step 5: Solve for x
x = 2,969,328,574,620.29/1,930,356.74 - Step 6: Final answer
x = 1,538,227.89
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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.