Finding the Fourth Proportional to 746,138.60, 1,119,207.90 and 247,502.60
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Solution
The fourth proportional to 746,138.60, 1,119,207.90 and 247,502.60 is: 371,253.90
Step by Step Solution
- Step 1: Write the proportion equation
746,138.60 : 1,119,207.90 = 247,502.60 : x - Step 2: Convert to fraction form
746,138.60/1,119,207.90 = 247,502.60/x - Step 3: Cross multiply
746,138.60x = 1,119,207.90 × 247,502.60 - Step 4: Simplify right side
746,138.60x = 277,006,865,190.54 - Step 5: Solve for x
x = 277,006,865,190.54/746,138.60 - Step 6: Final answer
x = 371,253.90
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Similar ratio
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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.