Finding the Fourth Proportional to 821,448.30, 1,232,356.05 and 288,986.70
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Solution
The fourth proportional to 821,448.30, 1,232,356.05 and 288,986.70 is: 433,544.64
Step by Step Solution
- Step 1: Write the proportion equation
821,448.30 : 1,232,356.05 = 288,986.70 : x - Step 2: Convert to fraction form
821,448.30/1,232,356.05 = 288,986.70/x - Step 3: Cross multiply
821,448.30x = 1,232,356.05 × 288,986.70 - Step 4: Simplify right side
821,448.30x = 356,134,508,114.54 - Step 5: Solve for x
x = 356,134,508,114.54/821,448.30 - Step 6: Final answer
x = 433,544.64
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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.