Finding the Fourth Proportional to 857,555.24, 1,286,526.92 and 288,920.88
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Solution
The fourth proportional to 857,555.24, 1,286,526.92 and 288,920.88 is: 433,446.71
Step by Step Solution
- Step 1: Write the proportion equation
857,555.24 : 1,286,526.92 = 288,920.88 : x - Step 2: Convert to fraction form
857,555.24/1,286,526.92 = 288,920.88/x - Step 3: Cross multiply
857,555.24x = 1,286,526.92 × 288,920.88 - Step 4: Simplify right side
857,555.24x = 371,704,495,416.87 - Step 5: Solve for x
x = 371,704,495,416.87/857,555.24 - Step 6: Final answer
x = 433,446.71
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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.