Finding the Fourth Proportional to 765,313.92, 1,056,133.20 and 425,782.08
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Solution
The fourth proportional to 765,313.92, 1,056,133.20 and 425,782.08 is: 587,579.27
Step by Step Solution
- Step 1: Write the proportion equation
765,313.92 : 1,056,133.20 = 425,782.08 : x - Step 2: Convert to fraction form
765,313.92/1,056,133.20 = 425,782.08/x - Step 3: Cross multiply
765,313.92x = 1,056,133.20 × 425,782.08 - Step 4: Simplify right side
765,313.92x = 449,682,590,653.06 - Step 5: Solve for x
x = 449,682,590,653.06/765,313.92 - Step 6: Final answer
x = 587,579.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.