Finding the Fourth Proportional to 2,106,224.55, 2,906,604.03 and 1,290,429.81
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Solution
The fourth proportional to 2,106,224.55, 2,906,604.03 and 1,290,429.81 is: 1,780,801.81
Step by Step Solution
- Step 1: Write the proportion equation
2,106,224.55 : 2,906,604.03 = 1,290,429.81 : x - Step 2: Convert to fraction form
2,106,224.55/2,906,604.03 = 1,290,429.81/x - Step 3: Cross multiply
2,106,224.55x = 2,906,604.03 × 1,290,429.81 - Step 4: Simplify right side
2,106,224.55x = 3,750,768,486,178.13 - Step 5: Solve for x
x = 3,750,768,486,178.13/2,106,224.55 - Step 6: Final answer
x = 1,780,801.81
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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.