Finding the Fourth Proportional to 857,579.67, 1,286,555.27 and 258,490.71
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Solution
The fourth proportional to 857,579.67, 1,286,555.27 and 258,490.71 is: 387,792.06
Step by Step Solution
- Step 1: Write the proportion equation
857,579.67 : 1,286,555.27 = 258,490.71 : x - Step 2: Convert to fraction form
857,579.67/1,286,555.27 = 258,490.71/x - Step 3: Cross multiply
857,579.67x = 1,286,555.27 × 258,490.71 - Step 4: Simplify right side
857,579.67x = 332,562,583,904.09 - Step 5: Solve for x
x = 332,562,583,904.09/857,579.67 - Step 6: Final answer
x = 387,792.06
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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.