Finding the Fourth Proportional to 816,474.05, 1,126,772.62 and 453,903.95
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Solution
The fourth proportional to 816,474.05, 1,126,772.62 and 453,903.95 is: 626,408.81
Step by Step Solution
- Step 1: Write the proportion equation
816,474.05 : 1,126,772.62 = 453,903.95 : x - Step 2: Convert to fraction form
816,474.05/1,126,772.62 = 453,903.95/x - Step 3: Cross multiply
816,474.05x = 1,126,772.62 × 453,903.95 - Step 4: Simplify right side
816,474.05x = 511,446,536,201.23 - Step 5: Solve for x
x = 511,446,536,201.23/816,474.05 - Step 6: Final answer
x = 626,408.81
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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.