Finding the Fourth Proportional to 857,595.70, 1,286,579.25 and 258,506.74
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Solution
The fourth proportional to 857,595.70, 1,286,579.25 and 258,506.74 is: 387,816.09
Step by Step Solution
- Step 1: Write the proportion equation
857,595.70 : 1,286,579.25 = 258,506.74 : x - Step 2: Convert to fraction form
857,595.70/1,286,579.25 = 258,506.74/x - Step 3: Cross multiply
857,595.70x = 1,286,579.25 × 258,506.74 - Step 4: Simplify right side
857,595.70x = 332,589,407,669.15 - Step 5: Solve for x
x = 332,589,407,669.15/857,595.70 - Step 6: Final answer
x = 387,816.09
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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.