Finding the Fourth Proportional to 977,474.70, 1,466,212.05 and 820,010.70
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Solution
The fourth proportional to 977,474.70, 1,466,212.05 and 820,010.70 is: 1,230,016.05
Step by Step Solution
- Step 1: Write the proportion equation
977,474.70 : 1,466,212.05 = 820,010.70 : x - Step 2: Convert to fraction form
977,474.70/1,466,212.05 = 820,010.70/x - Step 3: Cross multiply
977,474.70x = 1,466,212.05 × 820,010.70 - Step 4: Simplify right side
977,474.70x = 1,202,309,569,468.94 - Step 5: Solve for x
x = 1,202,309,569,468.94/977,474.70 - Step 6: Final answer
x = 1,230,016.05
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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.