Finding the Fourth Proportional to 1,521,423.84, 2,099,557.68 and 823,705.20
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Solution
The fourth proportional to 1,521,423.84, 2,099,557.68 and 823,705.20 is: 1,136,709.27
Step by Step Solution
- Step 1: Write the proportion equation
1,521,423.84 : 2,099,557.68 = 823,705.20 : x - Step 2: Convert to fraction form
1,521,423.84/2,099,557.68 = 823,705.20/x - Step 3: Cross multiply
1,521,423.84x = 2,099,557.68 × 823,705.20 - Step 4: Simplify right side
1,521,423.84x = 1,729,416,578,715.94 - Step 5: Solve for x
x = 1,729,416,578,715.94/1,521,423.84 - Step 6: Final answer
x = 1,136,709.27
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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.