Finding the Fourth Proportional to 1,528,961.70, 2,295,214.25 and 820,373.70
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Solution
The fourth proportional to 1,528,961.70, 2,295,214.25 and 820,373.70 is: 1,231,511.17
Step by Step Solution
- Step 1: Write the proportion equation
1,528,961.70 : 2,295,214.25 = 820,373.70 : x - Step 2: Convert to fraction form
1,528,961.70/2,295,214.25 = 820,373.70/x - Step 3: Cross multiply
1,528,961.70x = 2,295,214.25 × 820,373.70 - Step 4: Simplify right side
1,528,961.70x = 1,882,933,411,070.41 - Step 5: Solve for x
x = 1,882,933,411,070.41/1,528,961.70 - Step 6: Final answer
x = 1,231,511.17
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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.