Finding the Fourth Proportional to 1,029,687.84, 1,420,737.12 and 621,855.84
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Solution
The fourth proportional to 1,029,687.84, 1,420,737.12 and 621,855.84 is: 858,020.89
Step by Step Solution
- Step 1: Write the proportion equation
1,029,687.84 : 1,420,737.12 = 621,855.84 : x - Step 2: Convert to fraction form
1,029,687.84/1,420,737.12 = 621,855.84/x - Step 3: Cross multiply
1,029,687.84x = 1,420,737.12 × 621,855.84 - Step 4: Simplify right side
1,029,687.84x = 883,493,675,176.78 - Step 5: Solve for x
x = 883,493,675,176.78/1,029,687.84 - Step 6: Final answer
x = 858,020.89
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.