Finding the Fourth Proportional to 411,406.62, 567,861.83 and 239,365.05
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Solution
The fourth proportional to 411,406.62, 567,861.83 and 239,365.05 is: 330,393.99
Step by Step Solution
- Step 1: Write the proportion equation
411,406.62 : 567,861.83 = 239,365.05 : x - Step 2: Convert to fraction form
411,406.62/567,861.83 = 239,365.05/x - Step 3: Cross multiply
411,406.62x = 567,861.83 × 239,365.05 - Step 4: Simplify right side
411,406.62x = 135,926,275,331.04 - Step 5: Solve for x
x = 135,926,275,331.04/411,406.62 - Step 6: Final answer
x = 330,393.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.