Finding the Fourth Proportional to 648,246.80, 972,370.20 and 274,221.20
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Solution
The fourth proportional to 648,246.80, 972,370.20 and 274,221.20 is: 411,331.80
Step by Step Solution
- Step 1: Write the proportion equation
648,246.80 : 972,370.20 = 274,221.20 : x - Step 2: Convert to fraction form
648,246.80/972,370.20 = 274,221.20/x - Step 3: Cross multiply
648,246.80x = 972,370.20 × 274,221.20 - Step 4: Simplify right side
648,246.80x = 266,644,523,088.24 - Step 5: Solve for x
x = 266,644,523,088.24/648,246.80 - Step 6: Final answer
x = 411,331.80
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Similar ratio
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1.5x scale
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.