Finding the Fourth Proportional to 861,437.27, 1,292,350.35 and 285,059.08
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Solution
The fourth proportional to 861,437.27, 1,292,350.35 and 285,059.08 is: 427,652.96
Step by Step Solution
- Step 1: Write the proportion equation
861,437.27 : 1,292,350.35 = 285,059.08 : x - Step 2: Convert to fraction form
861,437.27/1,292,350.35 = 285,059.08/x - Step 3: Cross multiply
861,437.27x = 1,292,350.35 × 285,059.08 - Step 4: Simplify right side
861,437.27x = 368,396,200,383.38 - Step 5: Solve for x
x = 368,396,200,383.38/861,437.27 - Step 6: Final answer
x = 427,652.96
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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.