Finding the Fourth Proportional to 742,415.08, 1,112,187.66 and 443,134.12
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Solution
The fourth proportional to 742,415.08, 1,112,187.66 and 443,134.12 is: 663,844.68
Step by Step Solution
- Step 1: Write the proportion equation
742,415.08 : 1,112,187.66 = 443,134.12 : x - Step 2: Convert to fraction form
742,415.08/1,112,187.66 = 443,134.12/x - Step 3: Cross multiply
742,415.08x = 1,112,187.66 × 443,134.12 - Step 4: Simplify right side
742,415.08x = 492,848,299,988.96 - Step 5: Solve for x
x = 492,848,299,988.96/742,415.08 - Step 6: Final answer
x = 663,844.68
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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.