Finding the Fourth Proportional to 551,419.80, 827,129.70 and 411,451.80
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Solution
The fourth proportional to 551,419.80, 827,129.70 and 411,451.80 is: 617,177.70
Step by Step Solution
- Step 1: Write the proportion equation
551,419.80 : 827,129.70 = 411,451.80 : x - Step 2: Convert to fraction form
551,419.80/827,129.70 = 411,451.80/x - Step 3: Cross multiply
551,419.80x = 827,129.70 × 411,451.80 - Step 4: Simplify right side
551,419.80x = 340,324,003,898.46 - Step 5: Solve for x
x = 340,324,003,898.46/551,419.80 - Step 6: Final answer
x = 617,177.70
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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.