Finding the Fourth Proportional to 2,184,921.12, 3,277,381.68 and 689,129.76
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Solution
The fourth proportional to 2,184,921.12, 3,277,381.68 and 689,129.76 is: 1,033,694.64
Step by Step Solution
- Step 1: Write the proportion equation
2,184,921.12 : 3,277,381.68 = 689,129.76 : x - Step 2: Convert to fraction form
2,184,921.12/3,277,381.68 = 689,129.76/x - Step 3: Cross multiply
2,184,921.12x = 3,277,381.68 × 689,129.76 - Step 4: Simplify right side
2,184,921.12x = 2,258,541,250,566.80 - Step 5: Solve for x
x = 2,258,541,250,566.80/2,184,921.12 - Step 6: Final answer
x = 1,033,694.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.