Finding the Fourth Proportional to 690,740.06, 1,036,700.55 and 270,311.18
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Solution
The fourth proportional to 690,740.06, 1,036,700.55 and 270,311.18 is: 405,697.84
Step by Step Solution
- Step 1: Write the proportion equation
690,740.06 : 1,036,700.55 = 270,311.18 : x - Step 2: Convert to fraction form
690,740.06/1,036,700.55 = 270,311.18/x - Step 3: Cross multiply
690,740.06x = 1,036,700.55 × 270,311.18 - Step 4: Simplify right side
690,740.06x = 280,231,748,977.15 - Step 5: Solve for x
x = 280,231,748,977.15/690,740.06 - Step 6: Final answer
x = 405,697.84
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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.