Finding the Fourth Proportional to 1,388,864.84, 2,083,463.94 and 490,121
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Solution
The fourth proportional to 1,388,864.84, 2,083,463.94 and 490,121 is: 735,240.32
Step by Step Solution
- Step 1: Write the proportion equation
1,388,864.84 : 2,083,463.94 = 490,121 : x - Step 2: Convert to fraction form
1,388,864.84/2,083,463.94 = 490,121/x - Step 3: Cross multiply
1,388,864.84x = 2,083,463.94 × 490,121 - Step 4: Simplify right side
1,388,864.84x = 1,021,149,429,736.74 - Step 5: Solve for x
x = 1,021,149,429,736.74/1,388,864.84 - Step 6: Final answer
x = 735,240.32
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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.