Finding the Fourth Proportional to 809,320.12, 1,116,855.46 and 446,744.09
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Solution
The fourth proportional to 809,320.12, 1,116,855.46 and 446,744.09 is: 616,503.36
Step by Step Solution
- Step 1: Write the proportion equation
809,320.12 : 1,116,855.46 = 446,744.09 : x - Step 2: Convert to fraction form
809,320.12/1,116,855.46 = 446,744.09/x - Step 3: Cross multiply
809,320.12x = 1,116,855.46 × 446,744.09 - Step 4: Simplify right side
809,320.12x = 498,948,576,139.23 - Step 5: Solve for x
x = 498,948,576,139.23/809,320.12 - Step 6: Final answer
x = 616,503.36
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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.