Finding the Fourth Proportional to 913,517.20, 1,368,438.68 and 513,558.64
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Solution
The fourth proportional to 913,517.20, 1,368,438.68 and 513,558.64 is: 769,305.17
Step by Step Solution
- Step 1: Write the proportion equation
913,517.20 : 1,368,438.68 = 513,558.64 : x - Step 2: Convert to fraction form
913,517.20/1,368,438.68 = 513,558.64/x - Step 3: Cross multiply
913,517.20x = 1,368,438.68 × 513,558.64 - Step 4: Simplify right side
913,517.20x = 702,773,507,424.20 - Step 5: Solve for x
x = 702,773,507,424.20/913,517.20 - Step 6: Final answer
x = 769,305.17
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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.