Finding the Fourth Proportional to 455,761.96, 683,781.36 and 322,899.28
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Solution
The fourth proportional to 455,761.96, 683,781.36 and 322,899.28 is: 484,446.99
Step by Step Solution
- Step 1: Write the proportion equation
455,761.96 : 683,781.36 = 322,899.28 : x - Step 2: Convert to fraction form
455,761.96/683,781.36 = 322,899.28/x - Step 3: Cross multiply
455,761.96x = 683,781.36 × 322,899.28 - Step 4: Simplify right side
455,761.96x = 220,792,508,821.42 - Step 5: Solve for x
x = 220,792,508,821.42/455,761.96 - Step 6: Final answer
x = 484,446.99
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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.