Finding the Fourth Proportional to 921,193.42, 1,381,790.12 and 359,834.26
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Solution
The fourth proportional to 921,193.42, 1,381,790.12 and 359,834.26 is: 539,751.39
Step by Step Solution
- Step 1: Write the proportion equation
921,193.42 : 1,381,790.12 = 359,834.26 : x - Step 2: Convert to fraction form
921,193.42/1,381,790.12 = 359,834.26/x - Step 3: Cross multiply
921,193.42x = 1,381,790.12 × 359,834.26 - Step 4: Simplify right side
921,193.42x = 497,215,425,305.51 - Step 5: Solve for x
x = 497,215,425,305.51/921,193.42 - Step 6: Final answer
x = 539,751.39
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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.