Finding the Fourth Proportional to 768,520.73, 1,060,857.69 and 687,808.08
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Solution
The fourth proportional to 768,520.73, 1,060,857.69 and 687,808.08 is: 949,442.82
Step by Step Solution
- Step 1: Write the proportion equation
768,520.73 : 1,060,857.69 = 687,808.08 : x - Step 2: Convert to fraction form
768,520.73/1,060,857.69 = 687,808.08/x - Step 3: Cross multiply
768,520.73x = 1,060,857.69 × 687,808.08 - Step 4: Simplify right side
768,520.73x = 729,666,492,201.78 - Step 5: Solve for x
x = 729,666,492,201.78/768,520.73 - Step 6: Final answer
x = 949,442.82
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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.