Finding the Fourth Proportional to 853,789.46, 1,178,129.12 and 471,793.46
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Solution
The fourth proportional to 853,789.46, 1,178,129.12 and 471,793.46 is: 651,019.53
Step by Step Solution
- Step 1: Write the proportion equation
853,789.46 : 1,178,129.12 = 471,793.46 : x - Step 2: Convert to fraction form
853,789.46/1,178,129.12 = 471,793.46/x - Step 3: Cross multiply
853,789.46x = 1,178,129.12 × 471,793.46 - Step 4: Simplify right side
853,789.46x = 555,833,605,601.94 - Step 5: Solve for x
x = 555,833,605,601.94/853,789.46 - Step 6: Final answer
x = 651,019.53
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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.