Finding the Fourth Proportional to 756,396.05, 1,043,981.44 and 450,651.53
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Solution
The fourth proportional to 756,396.05, 1,043,981.44 and 450,651.53 is: 621,991.40
Step by Step Solution
- Step 1: Write the proportion equation
756,396.05 : 1,043,981.44 = 450,651.53 : x - Step 2: Convert to fraction form
756,396.05/1,043,981.44 = 450,651.53/x - Step 3: Cross multiply
756,396.05x = 1,043,981.44 × 450,651.53 - Step 4: Simplify right side
756,396.05x = 470,471,834,710.93 - Step 5: Solve for x
x = 470,471,834,710.93/756,396.05 - Step 6: Final answer
x = 621,991.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.