Finding the Fourth Proportional to 858,957.08, 1,288,222.67 and 290,325.53
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Solution
The fourth proportional to 858,957.08, 1,288,222.67 and 290,325.53 is: 435,416.33
Step by Step Solution
- Step 1: Write the proportion equation
858,957.08 : 1,288,222.67 = 290,325.53 : x - Step 2: Convert to fraction form
858,957.08/1,288,222.67 = 290,325.53/x - Step 3: Cross multiply
858,957.08x = 1,288,222.67 × 290,325.53 - Step 4: Simplify right side
858,957.08x = 374,003,933,372.14 - Step 5: Solve for x
x = 374,003,933,372.14/858,957.08 - Step 6: Final answer
x = 435,416.33
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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.