Finding the Fourth Proportional to 1,259,312.96, 1,889,249.76 and 460,576.64
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Solution
The fourth proportional to 1,259,312.96, 1,889,249.76 and 460,576.64 is: 690,967.48
Step by Step Solution
- Step 1: Write the proportion equation
1,259,312.96 : 1,889,249.76 = 460,576.64 : x - Step 2: Convert to fraction form
1,259,312.96/1,889,249.76 = 460,576.64/x - Step 3: Cross multiply
1,259,312.96x = 1,889,249.76 × 460,576.64 - Step 4: Simplify right side
1,259,312.96x = 870,144,306,581.61 - Step 5: Solve for x
x = 870,144,306,581.61/1,259,312.96 - Step 6: Final answer
x = 690,967.48
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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.