Finding the Fourth Proportional to 878,415.74, 1,317,609.75 and 279,368.24
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Solution
The fourth proportional to 878,415.74, 1,317,609.75 and 279,368.24 is: 419,047.95
Step by Step Solution
- Step 1: Write the proportion equation
878,415.74 : 1,317,609.75 = 279,368.24 : x - Step 2: Convert to fraction form
878,415.74/1,317,609.75 = 279,368.24/x - Step 3: Cross multiply
878,415.74x = 1,317,609.75 × 279,368.24 - Step 4: Simplify right side
878,415.74x = 368,098,316,864.34 - Step 5: Solve for x
x = 368,098,316,864.34/878,415.74 - Step 6: Final answer
x = 419,047.95
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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.