Finding the Fourth Proportional to 551,425.80, 827,138.70 and 411,457.80
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Solution
The fourth proportional to 551,425.80, 827,138.70 and 411,457.80 is: 617,186.70
Step by Step Solution
- Step 1: Write the proportion equation
551,425.80 : 827,138.70 = 411,457.80 : x - Step 2: Convert to fraction form
551,425.80/827,138.70 = 411,457.80/x - Step 3: Cross multiply
551,425.80x = 827,138.70 × 411,457.80 - Step 4: Simplify right side
551,425.80x = 340,332,669,796.86 - Step 5: Solve for x
x = 340,332,669,796.86/551,425.80 - Step 6: Final answer
x = 617,186.70
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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.