Finding the Fourth Proportional to 809,236.81, 1,116,580.09 and 465,006.23
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Solution
The fourth proportional to 809,236.81, 1,116,580.09 and 465,006.23 is: 641,612.80
Step by Step Solution
- Step 1: Write the proportion equation
809,236.81 : 1,116,580.09 = 465,006.23 : x - Step 2: Convert to fraction form
809,236.81/1,116,580.09 = 465,006.23/x - Step 3: Cross multiply
809,236.81x = 1,116,580.09 × 465,006.23 - Step 4: Simplify right side
809,236.81x = 519,216,698,143.96 - Step 5: Solve for x
x = 519,216,698,143.96/809,236.81 - Step 6: Final answer
x = 641,612.80
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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.