Finding the Fourth Proportional to 2,135,958.42, 2,947,497.74 and 1,169,106.78
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Solution
The fourth proportional to 2,135,958.42, 2,947,497.74 and 1,169,106.78 is: 1,613,299.00
Step by Step Solution
- Step 1: Write the proportion equation
2,135,958.42 : 2,947,497.74 = 1,169,106.78 : x - Step 2: Convert to fraction form
2,135,958.42/2,947,497.74 = 1,169,106.78/x - Step 3: Cross multiply
2,135,958.42x = 2,947,497.74 × 1,169,106.78 - Step 4: Simplify right side
2,135,958.42x = 3,445,939,591,868.68 - Step 5: Solve for x
x = 3,445,939,591,868.68/2,135,958.42 - Step 6: Final answer
x = 1,613,299.00
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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.