Finding the Fourth Proportional to 856,781.84, 1,283,129.86 and 496,190.80
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Solution
The fourth proportional to 856,781.84, 1,283,129.86 and 496,190.80 is: 743,103.09
Step by Step Solution
- Step 1: Write the proportion equation
856,781.84 : 1,283,129.86 = 496,190.80 : x - Step 2: Convert to fraction form
856,781.84/1,283,129.86 = 496,190.80/x - Step 3: Cross multiply
856,781.84x = 1,283,129.86 × 496,190.80 - Step 4: Simplify right side
856,781.84x = 636,677,231,737.29 - Step 5: Solve for x
x = 636,677,231,737.29/856,781.84 - Step 6: Final answer
x = 743,103.09
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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.