Finding the Fourth Proportional to 990,408.24, 1,484,628.16 and 590,449.68
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Solution
The fourth proportional to 990,408.24, 1,484,628.16 and 590,449.68 is: 885,087.77
Step by Step Solution
- Step 1: Write the proportion equation
990,408.24 : 1,484,628.16 = 590,449.68 : x - Step 2: Convert to fraction form
990,408.24/1,484,628.16 = 590,449.68/x - Step 3: Cross multiply
990,408.24x = 1,484,628.16 × 590,449.68 - Step 4: Simplify right side
990,408.24x = 876,598,221,990.99 - Step 5: Solve for x
x = 876,598,221,990.99/990,408.24 - Step 6: Final answer
x = 885,087.77
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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.