Finding the Fourth Proportional to 4,478,279.45, 6,178,079.52 and 2,845,812.74
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Solution
The fourth proportional to 4,478,279.45, 6,178,079.52 and 2,845,812.74 is: 3,925,984.88
Step by Step Solution
- Step 1: Write the proportion equation
4,478,279.45 : 6,178,079.52 = 2,845,812.74 : x - Step 2: Convert to fraction form
4,478,279.45/6,178,079.52 = 2,845,812.74/x - Step 3: Cross multiply
4,478,279.45x = 6,178,079.52 × 2,845,812.74 - Step 4: Simplify right side
4,478,279.45x = 17,581,657,375,858.69 - Step 5: Solve for x
x = 17,581,657,375,858.69/4,478,279.45 - Step 6: Final answer
x = 3,925,984.88
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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.