Finding the Fourth Proportional to 485,416.08, 669,561.48 and 322,069.05
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Solution
The fourth proportional to 485,416.08, 669,561.48 and 322,069.05 is: 444,247.81
Step by Step Solution
- Step 1: Write the proportion equation
485,416.08 : 669,561.48 = 322,069.05 : x - Step 2: Convert to fraction form
485,416.08/669,561.48 = 322,069.05/x - Step 3: Cross multiply
485,416.08x = 669,561.48 × 322,069.05 - Step 4: Simplify right side
485,416.08x = 215,645,029,780.19 - Step 5: Solve for x
x = 215,645,029,780.19/485,416.08 - Step 6: Final answer
x = 444,247.81
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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.