Finding the Fourth Proportional to 837,920.84, 1,156,311.86 and 455,948.68
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Solution
The fourth proportional to 837,920.84, 1,156,311.86 and 455,948.68 is: 629,198.89
Step by Step Solution
- Step 1: Write the proportion equation
837,920.84 : 1,156,311.86 = 455,948.68 : x - Step 2: Convert to fraction form
837,920.84/1,156,311.86 = 455,948.68/x - Step 3: Cross multiply
837,920.84x = 1,156,311.86 × 455,948.68 - Step 4: Simplify right side
837,920.84x = 527,218,866,235.35 - Step 5: Solve for x
x = 527,218,866,235.35/837,920.84 - Step 6: Final answer
x = 629,198.89
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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.