Finding the Fourth Proportional to 1,101,817.42, 1,520,511.20 and 611,787.99
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Solution
The fourth proportional to 1,101,817.42, 1,520,511.20 and 611,787.99 is: 844,269.19
Step by Step Solution
- Step 1: Write the proportion equation
1,101,817.42 : 1,520,511.20 = 611,787.99 : x - Step 2: Convert to fraction form
1,101,817.42/1,520,511.20 = 611,787.99/x - Step 3: Cross multiply
1,101,817.42x = 1,520,511.20 × 611,787.99 - Step 4: Simplify right side
1,101,817.42x = 930,230,495,757.67 - Step 5: Solve for x
x = 930,230,495,757.67/1,101,817.42 - Step 6: Final answer
x = 844,269.19
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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.