Finding the Fourth Proportional to 811,748.67, 1,216,458.09 and 456,013.95
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Solution
The fourth proportional to 811,748.67, 1,216,458.09 and 456,013.95 is: 683,366.51
Step by Step Solution
- Step 1: Write the proportion equation
811,748.67 : 1,216,458.09 = 456,013.95 : x - Step 2: Convert to fraction form
811,748.67/1,216,458.09 = 456,013.95/x - Step 3: Cross multiply
811,748.67x = 1,216,458.09 × 456,013.95 - Step 4: Simplify right side
811,748.67x = 554,721,858,630.36 - Step 5: Solve for x
x = 554,721,858,630.36/811,748.67 - Step 6: Final answer
x = 683,366.51
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.