Finding the Fourth Proportional to 811,866.60, 1,120,348.26 and 449,305.74
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Solution
The fourth proportional to 811,866.60, 1,120,348.26 and 449,305.74 is: 620,026.62
Step by Step Solution
- Step 1: Write the proportion equation
811,866.60 : 1,120,348.26 = 449,305.74 : x - Step 2: Convert to fraction form
811,866.60/1,120,348.26 = 449,305.74/x - Step 3: Cross multiply
811,866.60x = 1,120,348.26 × 449,305.74 - Step 4: Simplify right side
811,866.60x = 503,378,904,017.01 - Step 5: Solve for x
x = 503,378,904,017.01/811,866.60 - Step 6: Final answer
x = 620,026.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.