Finding the Fourth Proportional to 865,677.68, 1,298,516.84 and 225,979.61
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Solution
The fourth proportional to 865,677.68, 1,298,516.84 and 225,979.61 is: 338,969.49
Step by Step Solution
- Step 1: Write the proportion equation
865,677.68 : 1,298,516.84 = 225,979.61 : x - Step 2: Convert to fraction form
865,677.68/1,298,516.84 = 225,979.61/x - Step 3: Cross multiply
865,677.68x = 1,298,516.84 × 225,979.61 - Step 4: Simplify right side
865,677.68x = 293,438,322,306.57 - Step 5: Solve for x
x = 293,438,322,306.57/865,677.68 - Step 6: Final answer
x = 338,969.49
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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.