Finding the Fourth Proportional to 749,979.30, 1,124,859.60 and 217,444.80
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Solution
The fourth proportional to 749,979.30, 1,124,859.60 and 217,444.80 is: 326,135.50
Step by Step Solution
- Step 1: Write the proportion equation
749,979.30 : 1,124,859.60 = 217,444.80 : x - Step 2: Convert to fraction form
749,979.30/1,124,859.60 = 217,444.80/x - Step 3: Cross multiply
749,979.30x = 1,124,859.60 × 217,444.80 - Step 4: Simplify right side
749,979.30x = 244,594,870,750.08 - Step 5: Solve for x
x = 244,594,870,750.08/749,979.30 - Step 6: Final answer
x = 326,135.50
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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.