Finding the Fourth Proportional to 553,639.23, 764,022.15 and 298,990.44
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Solution
The fourth proportional to 553,639.23, 764,022.15 and 298,990.44 is: 412,606.81
Step by Step Solution
- Step 1: Write the proportion equation
553,639.23 : 764,022.15 = 298,990.44 : x - Step 2: Convert to fraction form
553,639.23/764,022.15 = 298,990.44/x - Step 3: Cross multiply
553,639.23x = 764,022.15 × 298,990.44 - Step 4: Simplify right side
553,639.23x = 228,435,318,798.25 - Step 5: Solve for x
x = 228,435,318,798.25/553,639.23 - Step 6: Final answer
x = 412,606.81
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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.