Finding the Fourth Proportional to 4,119,132.60, 6,178,698.90 and 1,279,531.80
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Solution
The fourth proportional to 4,119,132.60, 6,178,698.90 and 1,279,531.80 is: 1,919,297.70
Step by Step Solution
- Step 1: Write the proportion equation
4,119,132.60 : 6,178,698.90 = 1,279,531.80 : x - Step 2: Convert to fraction form
4,119,132.60/6,178,698.90 = 1,279,531.80/x - Step 3: Cross multiply
4,119,132.60x = 6,178,698.90 × 1,279,531.80 - Step 4: Simplify right side
4,119,132.60x = 7,905,841,725,175.02 - Step 5: Solve for x
x = 7,905,841,725,175.02/4,119,132.60 - Step 6: Final answer
x = 1,919,297.70
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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.