Finding the Fourth Proportional to 551,115.20, 825,885.60 and 313,956.80
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Solution
The fourth proportional to 551,115.20, 825,885.60 and 313,956.80 is: 470,486.75
Step by Step Solution
- Step 1: Write the proportion equation
551,115.20 : 825,885.60 = 313,956.80 : x - Step 2: Convert to fraction form
551,115.20/825,885.60 = 313,956.80/x - Step 3: Cross multiply
551,115.20x = 825,885.60 × 313,956.80 - Step 4: Simplify right side
551,115.20x = 259,292,400,142.08 - Step 5: Solve for x
x = 259,292,400,142.08/551,115.20 - Step 6: Final answer
x = 470,486.75
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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.