Finding the Fourth Proportional to 862,910.08, 1,294,083.41 and 286,378.49
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Solution
The fourth proportional to 862,910.08, 1,294,083.41 and 286,378.49 is: 429,474.25
Step by Step Solution
- Step 1: Write the proportion equation
862,910.08 : 1,294,083.41 = 286,378.49 : x - Step 2: Convert to fraction form
862,910.08/1,294,083.41 = 286,378.49/x - Step 3: Cross multiply
862,910.08x = 1,294,083.41 × 286,378.49 - Step 4: Simplify right side
862,910.08x = 370,597,654,693.17 - Step 5: Solve for x
x = 370,597,654,693.17/862,910.08 - Step 6: Final answer
x = 429,474.25
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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.